The design of mixing new additives with loess to promote the efficiency of rainwater catchments materials was put forward.

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Rainwater is channelled into sand catchments, which serve both to filter it and to protect it from evaporation.

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Rainwater catchments system engineering is an important way to develop agriculture, reduce erosion of soil, improve environment and increase incoming of farmers.

雨水集蓄利用工程是干旱半干旱地區(qū)發(fā)展農(nóng)業(yè)生產(chǎn)丁香花在线观看视频在线、減少水土流失午夜性色一区二区免费视频、改善生態(tài)環(huán)境、提高農(nóng)民收入的重要途徑一级国产。

Incidentally I forgot and used plain tap water rather than deionised water (we use rainwater here for water supply).

順便提一句我忘了全免费毛片免费看，用普通的自來水，而不是去離子水（我們使用雨水這里的供水）红牛黄色视频。

Chapter 5 discusses soil depurating mechanism to contamination of rainwater.

第五章探討了土壤層對雨水中污染物的凈化機理性感美女毛片视频。

The research result of the paper indicates that utilizing manual soil dealing with rainwater can reach better depurating effect by reasonable designing and controling.

并對其技術(shù)經(jīng)濟效益進行分析，得出在該小區(qū)實施雨水回灌方案優(yōu)于傳統(tǒng)雨水排放方案男女干事网站，可多收益29423元日日摸夜夜摸人人看亚洲综合。

On the basis of examination chapter 6 puts forward the implementary project of utilizing rainwater to recharge groundwater after soil depurating contamination, which exampled by a living zone in Xian, and analyses its economic benefits.

第六章在試驗基礎(chǔ)上，以西安市某生活小區(qū)為例提出利用城市雨水經(jīng)土壤層凈化后人工補給地下水的實施方案www.亚洲综合。

In practical project, especially in the condition of soil with badly penetrating ability and lower groundwater level ,can adopt about one meter deepness manual soil laying on the greenbelt and can also design special manual soil depurating equipment around building to dealing with rainwater, which not only assures depurating effect but also saves occupying area and improves environment.

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