It provide reference for the design of pumpingirrigation works on the heavy silt carrying rivers.
可供多泥沙河流电力提灌工程设计参考。
2
Some useful methods provailed in our country are presented here for calculating the economical head in pumpingirrigation.
本文介绍了国内关于经济扬程现有的几种计算方法，并分别进行了分析评价。
3
In hilly areas, water pumpingirrigation lift is high, and the irrigation water fee is high because of the high pumping cost, so the burdens on farmers are very heavy.