灌溉: irrigate; irrigation; watering 短语和例子提水灌溉 irrigation by pumping; 节水灌溉 water-efficient irrigation; 由许多河流灌溉的土地 a land irrigated by many streams; 干旱地区需要灌溉才能使作物生长。 irrigation is needed to make
Research about the dynamic changes of soil moisture consumption in the root district of summer maize and the application efficiency of soil water 灌溉条件下夏玉米田根系层水分动态和田间灌溉水有效利用率的研究
2.
The effective utilization rate of agricultural irrigation water is very low . its utilization factor is below 0 . 4 that there are great potentialities on water saving in irrigated regions 农业灌溉水有效利用率低下，灌溉水利用系数不足0 . 4 ，灌区节水有相当大的潜力。
