检索结果-内蒙古大学图书馆

SSRN 2023年

作者： Zhang, Lanping Adyari, Bob Hou, Liyuan Yang, Xiaoyong Gad, Mahmoud Wang, Yuwen Ma, Cong Sun, Qian Tang, Qiang Zhang, Yifeng Yu, Chang-Ping Hu, Anyi CAS Key Laboratory of Urban pollutant Conversion Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China University of Chinese Academy of Sciences Beijing100049 China Fujian Key Laboratory of Watershed Ecology Institute of Urban Environment Chinese Academy of Sciences Xiamen361021 China Department of Environmental Engineering Universitas Pertamina Jakarta12220 Indonesia Department of Civil and Environmental Engineering Utah State university Utah UT84322 United States Utah Water Research Laboratory Utah State University LoganUT84322 United States School of Environmental and Material Engineering Yantai University 30 Qingquan Road Yantai264005 China Institute of Urban Environment Marine biology Institute Shantou University Shantou515063 China Xiamen Municipal Environmental Technology Co. Ltd. Xiamen361001 China Department of Environmental Science and Technology University of Science and Technology of China Hefei230026 China Department of Environmental and Resource Engineering Technical University of Denmark LyngbyDK-2800 Denmark

Wastewater treatment plants (WWTPs) are the hotspots for the spread of antibiotic resistance genes (ARGs) into the environment. Nevertheless, a comprehensive assessment of the city-level and short-term daily variations of ARG surveillance is still lacking in WWTPs. Here, 285 ARGs and ten mobile gene elements (MGEs) were monitored in seven WWTPs in Xiamen via high-throughput qPCR (HT-qPCR) for seven days. The average daily load of ARGs to WWTPs was about 1.21×1020 copies/d, and a total of 1.44×1018 copies/d was discharged to the environment across the entire city. Interestingly, no daily variations were observed in ARG richness, abundance, and community composition. Stochastic processes were the main force determining the assembly of ARG communities, with their relative importance ranked in the order of influent (INF) > effluent (EFF) > activated sludge (AS). Further analyses indicated that bacteria and ARGs from upstream treatment units played an increasingly dominant role in shaping ARG communities in AS and EFF, respectively, suggesting the importance of mass-immigration of bacteria and ARGs from the source on ARG transport in wastewater treatment units. This emphasizes the need to revise the way we mitigate ARG contamination but focus on the source of ARGs in urban wastewater. © 2023, The Authors. All rights reserved.

关键词： Effluents

来源：评论

学校读者我要写书评

暂无评论

Aquifer clogging caused by chlorine disinfection during the reclaimed water recharge

引用

Chemosphere 2023年第1期337卷 139387页

作者： Ying, Zhian Wu, Jinghui Ma, Min Wang, Xianze Huo, Mingxin Science and Technology Innovation Center for Municipal Wastewater Treatment and Water Quality Protection Northeast Normal University Changchun130117 China Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China Ministry of Education Changchun130117 China Key Laboratory of Songliao Aquatic Environment Ministry of Education Jilin Jianzhu University Changchun130118 China

Aquifer clogging plays a critical role in the efficiency of reclaimed water recharge. While chlorine disinfection is commonly used for reclaimed water, its impact on clogging has seldom been discussed. Thus, this study aimed to investigate the mechanism of chlorine disinfection on clogging by establishing a lab-scale reclaimed water recharge system that utilized chlorine-treated secondary effluent as feed water. The findings indicated that increasing the chlorine concentration led to a surge in the total amount of suspended particles, and the median particle size increased from 2.65 μm to 10.58 μm. Furthermore, the fluorescence intensity of dissolved organic matter decreased by 20%, with 80% of these compounds, including humic acid, becoming entrapped within the porous media. Additionally, the formation of biofilms was also found to be promoted. Microbial community structure analysis unveiled a consistent dominance of Proteobacteria consistently exceeded 50% in relative abundance. Moreover, the relative abundance of Firmicutes increased from 0.19% to 26.28%, thereby verifying their strong tolerance to chlorine disinfection. These results showed that higher chlorine concentrations could stimulate microorganisms to secrete an increased quantity of extracellular polymeric substance (EPS) and form a coexistence system with the trapped particles and natural organic matter (NOM) within the porous media. Consequently, this supported the formation of biofilms, thereby potentially elevating the risk of aquifer clogging. © 2023

关键词： Aquifers

来源：评论

学校读者我要写书评

暂无评论

Construction of Mos2/Nife@Ni Foam P-N Heterojunction as Photoanode for Tetracycline Degradation and Simultaneous Cathodic Hydrogen Evolution

SSRN

引用

SSRN 2022年

作者： Yu, Jiuheng Cong, Sumin Liu, Baojun Teng, Wei Department of Environmental and Chemical Engineering Jiangsu University of Science and Technology Zhenjiang212003 China College of Resource and Environmental Engineering Guizhou University Guizhou Karst Environmental Ecosystems Observation and Research Station Key Laboratory of Karst Georesources and Environment Ministry of Education Guiyang550025 China

The development of efficient photocatalysts to degrade resistant pollutants while producing hydrogen are the preferred strategy to resolve environmental contamination and energy crisis. The type-Ⅱ p-n heterojunction of MoS 2 /NiFe@Ni foam electrode was successfully constructed by a simple hydrothermal method and electrodeposition method. The characterizations of MoS 2 /NiFe@Ni foam were performed by UV-vis, SEM, XRD, XPS to investigate the physical and chemical properties. The MoS 2 /NiFe@Ni foam electrode was used as photoanode to degrade tetracycline (TC), while hydrogen was generated using the reduction reaction at the cathode. The typical bifunction photoelectrocatalytic system was responsible for TC degradation efficiency up to 92% within 100 mins. In contrast, the degradation rate of TC by NiFe@Ni foam was only 45%. The hydrogen production at the cathode was up to 61.46 μmol cm -2 when MoS 2 /NiFe@Ni foam was used as the anode. Which was 15 times higher than that when NiFe@Ni foam was used as the photoanode. The heterojunction constructed between MoS 2 and NiFe-LDH effectively enhances the light absorption range of the photoanode. Moreover, the separation and migration efficiency of the photogenerated charges of the composite electrode were also promoted obviously. This work presents a promising approach for degrading organic pollutants while splitting water to produce hydrogen simultaneously. © 2022, The Authors. All rights reserved.

关键词： Hydrogen production

来源：评论

学校读者我要写书评

暂无评论

Microstructure and Tensile Properties of Rafm Steel Strengthened by Zrc-Nanoparticle Dispersion

SSRN

引用

SSRN 2022年

作者： Wang, Hui Wang, Gaixia Wang, Fu An, Xuguang Chang, Yongqin Interdisciplinary Materials Research Center Institute for Advanced Study Chengdu University Sichuan Chengdu610106 China Science and Technology on Reactor Fuel and Materials Laboratory Nuclear Power Institute of China Chengdu610041 China State Key Laboratory of Environment-friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology Mianyang621010 China School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China

Reduced activation ferritic/martensitic (RAFM) steel powders containing 0, 0.25, 0.5, 0.75 and 1.0 wt% ZrC were prepared by mechanical alloying method, and dense ZrC-RAFM steels were synthesized via spark plasma sintering (SPS) technology or/and a rolling process by using the RAFM powders. Moreover, the phase composition, surface morphology, size and distribution of grains, fracture morphology and tensile properties of the prepared ZrC-RAFM steels were investigated and analyzed in detail. The results show that the optimum properties of the ZrC-RAFM steel were obtained while high-energy ball milling for 50 h, and SPS at 1050 °C followed by hot rolling at 1100 °C. It has been proven that the nano-ZrC particles are dispersed in the RAFM steel, resulting in the significant decrease of grain size and the enhanced tensile properties of the steel. With the increasing content of ZrC, the hardness and strength of the material are enhanced, and the mechanism of the enhanced properties is analyzed and discussed. When the addition of ZrC is 0.75 wt%, the tensile strength of the ZrC-RAFM steel is 2069.63 MPa, which is 19.6% higher than that (1730.28 MPa) of the RAFM steel without ZrC, and the break elongation is reduced from 9.5% to 5.0%. The conclusions provide researchers with the roles of ZrC-nanoparticle in micromorphology, structure and properties of enhanced RAFM steel as potential cladding materials for the fast reactors. © 2022, The Authors. All rights reserved.

关键词： Morphology

来源：评论

学校读者我要写书评

暂无评论

Combined effects of spinetoram and Microcystis aeruginosa on Daphnia pulex offspring: Maternal effects and multigenerational implications

引用

Chemosphere 2024年 352卷 141376页

作者： Zhu, Xuexia Zhan, Yihe Jia, Xuanhe Li, Meng Yin, Tianchi Wang, Jun College of Animal Science and Technology Yangzhou University Yangzhou 225009 China College of Oceanography Hohai University Nanjing 210049 China Faculty of Engineering and Physical Sciences University of Southampton Southampton SO17 1BJ United Kingdom State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and Limnology Chinese Academic of Sciences Nanjing 210008 China

The increasing occurrence of harmful algal blooms (HABs) in freshwater ecosystems detrimentally affect global water environments. Zooplankton's role in controlling HABs is hindered by contaminant exposure, necessitating research into combined stressors' ecological impacts. The response of Daphnia, a freshwater keystone species, to environmental stressors can be influenced by its maternal effects. Here, we investigated the combined effects of the world-widely used insecticide spinetoram and non-toxic HABs species Microcystis aeruginosa on the life-history traits of D. pulex offspring produced from different maternal food conditions. Four maternal groups were established, with each group receiving a specific blend of C. vulgaris (Ch) and M. aeruginosa (Ma) in varying proportions: A (100% Ch), B (90% Ch + 10% Ma), C (80% Ch + 20% Ma), and D (70% Ch + 30% Ma). The offspring from the third brood were gathered, and a 21-day experiment was carried out, involving various feeding groups (AA, AD, BA, BB, CA, CC, DA, and DD). Results demonstrated that grazing on M. aeruginosa by D. pulex induced maternal effects on their offspring, with the continuous exposure group showing an enhanced tolerance to M. aeruginosa. This study also unveiled that spinetoram could interfere with the molting of D. pulex, leading to developmental retardation. The Recovery Group exhibited an intriguing phenomenon: under the influence of both concentrations of the pesticide spinetoram (0.18, 0.35 μg L⁻¹), D. pulex produced more offspring. This might be due to a combined strategy of allocating more energy towards reproduction in response to low-quality food and a potential hormetic effect from low concentrations of spinetoram. Assessing the interplay of combined stressors across multiple generations, encompassing harmful algal blooms (HABs) and environmental pollutants, is essential for predicting population responses to evolving environmental conditions. This understanding is vital for the p

关键词： Daphnia pulex Life history Maternal effect Microcystis aeruginosa Spinetoram

来源：评论

学校读者我要写书评

暂无评论

Explore the Relationship between Bowen Ratio and Evapotranspiration in Wetlands Using the Maximum Entropy Production Model

SSRN

引用

SSRN 2024年

作者： Sun, Huaiwei Fu, Leying Wang, Weiguang Xue, Jie Wang, Jing Liao, Weihong Li, Haicheng Sun, Xunlai Yang, Yong Wang, Jingfeng Zhang, Hong Chen, Fulong Zhang, Wenxin School of Civil and Hydraulic Engineering Huazhong University of Science and Technology Wuhan430074 China College of Water Conservancy & Architectural Engineering Shihezi University 832003 China Hubei Key Laboratory of Digital River Basin Science and Technology Huazhong University of Science and Technology Wuhan430074 China Institute of Water Resources and Hydropower Huazhong University of Science and Technology Wuhan430074 China College of Hydrology and Water Resources Hohai University Nanjing210098 China Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences 830011 China Hubei Water Saving Research Center Hubei Water Resources China China Institute of Water Resource and Hydropower Research Beijing100038 China School of Civil and Environmental Engineering Georgia Institute of Technology Atlanta30318 United States School of Engineering and Built Environment Griffith University Australia Department of Physical Geography and Ecosystem Science Lund University Sweden Department of Geosciences and Natural Resource Management University of Copenhagen Copenhagen Denmark

Wetlands play significant roles in the water cycle as well as ecological health worldwide. It is challenging to understand and parameterize water and heat exchange over wetlands due to the mixed surfaces present in wetlands. To investigate the temporal characteristics of wetland evapotranspiration (ET), this study generalizes the maximum entropy production (MEP) model to simulate ET. The extended MEP model combines the NDVI dynamics, water evaporation, and plant transpiration to analyze wetland ET. The proposed approach exhibits good consistency with the observed trends by employing the observed values from 6 sites worldwide. The calculated results agree with the observations, and the NSE of the simulation results fluctuates between 0.6482 and 0.9386. Additionally, wetland vegetation has close relationships with the Bowen ratio and the ratio of transpiration to evapotranspiration, revealing that the NDVI directly influences the energy flux partition and allocation within evapotranspiration. The change in the NDVI observers a nonlinear relationship with the Bowen ratio. This study aids in understanding the change characteristics of wetland ET and conducting further research on the correlation between the NDVI and energy fluxes partitioning. © 2024, The Authors. All rights reserved.

关键词： Evapotranspiration

来源：评论

学校读者我要写书评

暂无评论

Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment

引用

Big Earth Data 2020年第3期4卷 295-321页

作者： Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala Aerosol and Haze Laboratory Beijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijingChina Institute for Atmospheric and Earth System Research/Physics Faculty of ScienceUniversity of HelsinkiHelsinkiFinland State Key Joint Laboratory of Environment Simulation and Pollution Control State Environmental Protection Key Laboratory of Sources and Control of Air Pollution ComplexSchool of EnvironmentTsinghua UniversityBeijingChina State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina Department of Environmental Science&Engineering Fudan UniversityShanghaiChina State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijingChina Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Nanjing University of Information Science&TechnologyNanjingChina State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Aerodyne Research Inc. BillericaMassachusettsUSA Institute of Physics University of TartuTartuEstonia Joint International Research Laboratory of Atmospheric and Earth System Sciences School of Atmospheric SciencesNanjing UniversityNanjingChina

Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil *** key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term ***,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese *** station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol *** produced long-term,comprehensive big data with around 1�10^(11)bytes per *** this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities.

关键词： Continuous and comprehensive atmospheric observation air pollution complex photochemical smog haze new particle formation

来源：评论

学校读者我要写书评

暂无评论

Molecular-Level Insight into the Origin-Dependent Adsorption Fractionation of Dissolved Organic Matter on Ferrihydrite in Aquatic environment: Implications for Carbon Sink in Eutrophic Lakes

SSRN

引用

SSRN 2024年

作者： Suo, Chengyu Zhao, Wensi Liu, Shasha Fu, Rui Ren, Yi Qiu, Yue Zhang, Yuxin He, Zhongqi Xing, Baoshan Wu, Fengchang School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing100083 China College of Environmental Science and Engineering Tongji University Shanghai200092 China USDA-ARS Southern Regional Research Center 1100 Robert E Lee Blvd New OrleansLA70124 United States Stockbridge School of Agriculture University of Massachusetts AmherstMA01003 United States State Key Laboratory of Environment Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China

Molecular fractionation of dissolved organic matter (DOM) induced by adsorption on minerals plays a significant role in carbon biogeochemical cycling in water environment. However, the molecular-level adsorption of algae-derived DOM (ADOM) on minerals in eutrophic lakes remain poorly understood. Herein, we investigated the ferrihydrite-induced adsorptive fractionation of ADOM and humic DOM for comparison by using spectral analysis, Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) and solid characterization methods. We observed higher adsorption rate but lower adsorption capacity for ADOM than humic DOM. Spectroscopy and FT-ICR-MS indicated compounds with large molecular weight (> 350 Da), high unsaturated and oxygen-rich were preferentially adsorbed for both ADOM and humic DOM. Specifically, the adsorption affinity order was aromatics > lignin-like > aliphatic compounds. Furthermore, tannin-like and condensed aromatics were predominantly adsorbed in humic DOM and protein-like formulas in ADOM. The solid characterization of ferrihydrite before and after adsorption further confirmed the preferential adsorption of aromatic and carboxylic-containing species in humic DOM and aliphatic materials in ADOM. Additionally, the contribution variation of oxygen atom to double bond in the molecular formula before and after adsorption identified absorbed oxygen-containing substances were predominantly aromatic carboxylic acids for humic DOM, but few aliphatic hydrocarbons substituted with ethers and alcohols for ADOM. These findings provided new insights into mineral-induced carbon sequestration, that is, increased release of ADOM in eutrophic lakes might reduce the amount of organic carbon settled by ferrihydrite, and alter its quality from aromatic to aliphatic compounds transfer from water column to sediment through ferrihydrite adsorption. © 2024, The Authors. All rights reserved.

关键词： Adsorption

来源：评论

学校读者我要写书评

暂无评论

The controlling factors of high suspended sediment concentration in the intertidal flat off the Huanghe River Estuary

引用

Acta Oceanologica Sinica 2020年第10期39卷 96-106页

作者： Bowen Li Yonggang Jia J.Paul Liu Jianfeng Su Xiaolei Liu Mingzheng Wen Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering Ocean University of ChinaQingdao 266100China Laboratory for Marine Geology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Department of Marine Earth and Atmospheric SciencesNorth Carolina State UniversityRaleighNC 27695USA State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China Tianjin Center China Geological SurveyTianjin 300170China

The Huanghe River(Yellow River)is known by its high suspended sediment concentration(SSC)in its river mouth tidal ***,the factors controlling the high SSC over there are not well ***,we conducted 7-d hydrodynamic observations(water depth,wave height,and current velocity)and SSC measurements on the tidal flat off the Huanghe River *** data shows that in most of time,under the calm sea condition,the SSC ranges 0.1–3.5 g/L,and sediment discharge from the river is the main ***,when hydrodynamics are enhanced in a tidal cycle and large-scale erosion occurs on the seafloor,resuspended sediment becomes the main source,and the SSC in the water column reaches 17.3 g/*** find the suspended sediment flux is mainly controlled by the tidal current and Stokes drift,while the wave-induced shear stress could also affect the variation of suspended sediment *** the observation period,when sea under calm-rippled conditions,the current-induced resuspended sediment concentration(RSC)was greater than the wave-induced *** contrast,in smooth-wavelet sea conditions,the wave-induced RSC was greater than the current-induced RSC,for instance,a single wave event was found to cause 11.8 cm seabed erosion within 6 *** study reveals different controlling factors for the high SSC near a river-influenced tidal flat,and helps us get a better understanding of a delta's depositional and erosional mechanisms.

关键词： Huanghe River(Yellow River) sediment re-suspension sediment transport wave current in-situ observation

来源：评论

学校读者我要写书评

暂无评论

Effect of Oxygen-Containing Functional Groups at Swcnt on the Formation of Sodium and Lithium Dendrites

SSRN

引用

SSRN 2023年

作者： Cai, Bihai Li, Mengting Zhou, Junhui Tan, Li Li, Didi Ao, Zhimin Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health Guangzhou Key Laboratory Environmental Catalysis and Pollution Control Institute of Environmental Health and Pollution Control Guangdong University of Technology Guangzhou510006 China Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control Key Laboratory for City Cluster Environmental Safety Green Development The Ministry of Education School of Environmental Science and Engineering Guangdong University of Technology Guangzhou510006 China Advanced Interdisciplinary Institute of Environment and Ecology Beijing Normal University Zhuhai Campus Zhuhai519087 China Chongqing 2D Materials Institution Chongqing400714 China

To realize high-performance and safe metal anodes for rechargeable Na/Li metal batteries, Na/Li dendrites formation on various oxygen-containing groups (-COOH, -OH, -CO, -COO, -O-) decorated SWCNTs (O-SWCNTs) were investigated by density functional theory (DFT) calculations. O-SWCNTs promote Na/Li adsorption compared with intrinsic SWCNT. The adsorption strength of Na/Li on different O-SWCNTs depends on the electronegativity of the active O and the O-SWCNTs with C=O exhibit better Na/Li affinity than others. The result shows that only OH-SWCNT can serve as a promising current collector for the development of dendrite-free Na or Li metal batteries due to its relatively weak attraction for Na/Li. On the other O-SWCNTs, Na and Li dendrites can be formed through Na-O-Na and Li-O-Li respectively. Therefore, dendrite-free carbon nanotubes collector can be achieved by regulating the oxygen-containing groups on its surface. Overall, this work brings new inspiration to the preparation of collectors to avoid dendrite growth. © 2023, The Authors. All rights reserved.

关键词： Density functional theory

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：