water efficiency of irrigation 灌溉水利用系数
irrigation water using efficiency 灌溉水利用率
irrigation water efficiency 灌溉水利用率
water use efficiency of irrigation 灌溉水利用效率
field irrigation water efficiency 田间灌溉水利用率
irrigation water use efficiency 灌溉用水效率
efficiency of irrigation water 灌溉水利用效率
Water – improving the efficiency of irrigation systems.
提高灌溉系统的效率。
The actual water requirements differ according to plant, climate (most of the water withdrawn by plants is for cooling through evaporation) and the efficiency of irrigation.
实际的需水量根据植物种类，气候(植物吸收的大部分水用于进行蒸发降温)，和灌溉效率的不同而有所不同。
Linking the efficiency of drip irrigation to the reliability of a solar-powered water pump, the PVDI systems need no batteries, gas, or kerosene.
这一系统将滴灌的高效性与太阳能水泵结合起来，它既不需要电池与汽油，也不需要煤油。
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