汇水区

汇水区南北的长石含量存在明显差异。

There are obvious differences in feldspar content between the north and south sides of the catchment area .

在城市污水处理厂汇水区实行污染源总量控制，应该避免与城市污水处理厂重复治理。

Pollution total quantity control in the catchment area of municipal waste water treatment plant should avoid the repetitive treatment of municipal wastewater treatment plant .

GIS支持下的城市雨水出水口汇水区自动划分研究侧式短进出水口水力试验及体型优化

Automatic compartmentalization of urban rainwater catchments on water outlet supported by GIS technology Experimental research and shape optimization on lateral short inlet / outlet

在此基础上，采用排污系数法和单位面积污染负荷法分别计算出各汇水区农村生活污水、畜禽养殖、农田和村镇建设用地降雨径流的COD排放量。

Consequently , COD discharges from household wastewater , livestock cultivation and the runoff from farmland and construction land were estimated using discharge coefficient and unit-area load approaches .

济南市南部山区渗漏带汇水区景观恢复与优化

Landscape Restoration and Optimization in Water Infiltrating Area of Southern Jinan Mountain Region

一种小汇水区水土流失观测研究方法

A method of observation and study of loss of soil and water from small catchment

对重点渗漏带做进一步划分，分析强渗漏带汇水区内的地下水补给对该地地下水的贡献；

Further dividing the seepage belts , and analyzing contribution of the supply to groundwater in strong seepage belts ;

贵州阿哈湖汇水区煤炭资源的不合理开采导致铁、锰在沉积物中蓄积并产生湖水季节性二次污染。

Coal exploitation leads to the Fe Mn accumulation in the sediments and seasonal secondary pollution in the waters in Lake Aha .

根据城市地形特点和汇水区特征，将长春市污水资源化系统划分为6个子系统，再生水补给工业、市政杂用和生态用水。

According to the characteristics of urban terrain and the drainage districtes , the area of wastewater resource utilization could devided into six different parts in ChangChun , and the reclaimed water would supply for industry , municipal construction and urban entironment .