It provide reference for the design of pumping irrigation works on the heavy silt carrying rivers.
可供多泥沙河流电力提灌工程设计参考。
Some useful methods provailed in our country are presented here for calculating the economical head in pumping irrigation.
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。
In hilly areas, water pumping irrigation lift is high, and the irrigation water fee is high because of the high pumping cost, so the burdens on farmers are very heavy.
丘陵地区提水灌溉需要的扬程高，水费占灌溉成本的比重大，农民的负担很重。
A large number of pump stations undertake the tasks of agriculture pumping irrigation, urban water supply and drainage and play the important role in the national economy of China.
我国目前大量的泵站在国民经济中承担着农业抽水灌溉、城市供水排水等任务，发挥着巨大的作用。
The"311-A"regression design was adopted to study the optimum ratio of N, P and K fertilizers on maize field of Yellow River Pumping Irrigation District in Cheng Xitan, Yanchi Ningxia.
运用“311-A”试验设计，探讨宁夏盐池县城西滩扬黄灌区玉米氮、磷、钾肥料的最佳配比。
Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.
在干旱的热带地区，提供灌溉水的最低成本的方法通常是建造小规模的工程。例如，在洼地收集雨水，然后将其抽调至附近的农田。
Millions of irrigation wells in many countries are now pumping water out of underground sources faster than rainfall can refill them.
在许多国家，数以百万计的灌溉井现在从地下水源抽水的速度，超过了降雨所能再次填满的速度。
In order to fundamentally improve the drought resistance, large scale and medium-sized irrigation system, pumping stations and small irrigation and water conservancy facilities must be scaled.3.
大兴农田水利，全面加强大中型灌区、泵站和小型农田水利设施建设，从根本上提高抗旱能力。
Effects of sprinkle irrigation and flood irrigation by pumping water on the growth and production were analyzed and compared.
对比分析了节水灌溉(喷灌)、抽水灌溉(漫灌)对甘蔗生长和蔗茎产量的效应。
Irrigation district operation requires that pumping station not only satisfy normal water supply, but ensure the water reserves of adjustment reservoir and water lifting irrigation form the reservoir.
灌区运行要求泵站既能满足正常情况供水，又能满足向调节水库储水和从调节水库提水灌溉。
In view of steep mountain streams in mountainous areas acute and is rich in water resources can promote the use of the water Turbine Pumping water to address the high ground hillock irrigation.
鉴于一些山区山陡流急，有着丰富的水力资源，可推广利用水能的水轮泵，以解决高地、岗地的灌溉。
The causes of relatively lower power factor in the small power irrigation pumping station were analyzed.
针对小型电力提灌站功率因数偏低的问题，分析了其产生的原因。
Some successful examples were given to illustrate the effects of different pumping sites along the irrigation canals on sediment utilization, treatment and transportation.
并例举了渠道不同部位设置提水设施对于引黄灌区泥沙利用、理和输送等方面的作用和效果。
This view has some reference value to the adjusting method of the irrigation and drainage pumping station.
此观点对灌排泵站选择调节方式具有一定借鉴意义。
This view has some reference value to the adjusting method of the irrigation and drainage pumping station.
此观点对灌排泵站选择调节方式具有一定借鉴意义。
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