印度和孟加拉国的河道系统布满肠道致病菌。
The river systems of India and Bangladesh are rife with diarrhoeal disease.
由此，提出了建议开展水土保持治理对河道系统影响的若干基础理论问题。
Thus, several theoretical foundations that soil and water conservation influences its river system is set forth in this paper.
根据GIS、数据库系统的原理，设计实现了河道与库区泥沙淤积系统的数据模型、功能模块和主体结构，成功地将基础数据库进行了入库操作。
Based on the principle of GIS and database system, data model, function modules and agent structure of sediment silting system of watercourse and reservoir zone is designed.
第五条国家对河道实行按水系统一管理和分级管理相结合的原则。
The state of river water by the implementation of unified management and management levels.
对数据库中的数据研究和分析，利用统一建模语言(uml)分析和设计数字河道信息管理系统。
Through the research and analysis of data in the database, unified modeling language (UML) is used to analyze and design the digital river information management system.
在数字地形的基础上可开发各种河道信息应用系统，如冲淤分析、河床演变、工程规划、灾情评估等。
Based digital Terran information, river information application systems would be developed, such as erosion-deposition analysis, fluvial process, engineering planning and evaluation etc.
分流制雨水系统旱流放江严重污染了上海市河道水质。
The discharges from separate storm sewer systems in the dry weather do great harm to receiving water in Shanghai.
本文对沂沭河流域大型水库至下游控制站的河道流量演算方案进行了系统研究。
This paper introduced the research results on river flow routing scheme for the reaches from large-scale reservoirs to downstream control stations in the Yishuhe river Basin.
最后它们在宽阔的河谷内连接起来，形成一个交织的河道砂系统。
These may eventually coalesce to form an anastomosing system of channel sands within a broad valley.
河道滞留塘系统是以颗粒物沉降为污染物主要净化机理的污染河流净化技术。
On-stream detention pond system (OSDPS) is a promising technology for polluted river purification and restoration, whose main purification mechanism was particle settlement.
万泉河流域面积大、降雨分布不均匀，洪水受多种复杂因素的影响，因此采用多单元的水文学模型与河道水力学模型相结合的预报系统。
In order to study flood management problems of the Wanquan River basin, a hydrological multicell and hydraulics model has been built up to simulate complex flood routing behaviors.
介绍了长江河道信息服务系统二维信息查询模块的主要功能与特点。
Main functions and characteristics of the 2-d information inquiry module of the Yangtze River Channel information Service System are presented in this paper.
河道生态系统中的河岸侵蚀和滨水缓冲带建设备受关注。
The erosion of riverbank and the disappearance of riparian buffering strips are among the concerns in river ecosystem.
河道生态系统中的河岸侵蚀和滨水缓冲带建设备受关注。
The erosion of riverbank and the disappearance of riparian buffering strips are among the concerns in river ecosystem.
应用推荐