相关列句
"Efficient" irrigation is often used to describe systems that result in 85% of the water disappearing in vapor.(“有效”灌溉通常指的都是一些让85%的水最终以水汽的形式逸散的作法。)
It was a three-year water irrigation project.(这是一项为期三年的灌溉工程。)
Donna helped the people of the village to organize an irrigation project, and she also advised them on planting corps.(唐娜帮助村里的人们建造了一个灌溉工程，还给予他们关于种植庄稼的建议。)
Most of these operations draw irrigation water from local rivers or lakes.(大部分的操作从当地的河流或湖泊引来灌溉用水。)
Only by using modern irrigation methods can we reduce water shortage in agriculture.(只有使用现代的灌溉方法，我们才能减少农业用水短缺的情况。)
Irrigation is needed to make crops grow in dry regions.(干旱地区需要灌溉才能使作物生长。)
Drip, or "micro" irrigation, as the name suggests, is stingier with the water, delivering it to the roots of plants drop by drop.(滴灌，或者“微”灌溉，顾名思义，是更吝啬于水，把水一滴一滴地滴到植物的根部。)
Certain irrigation practices degrade soil quality and reduce agricultural productivity.(某些灌溉措施会降低土壤质量，降低农业生产力。)
The agricultural land is hilly and the irrigation poor.(这片农田多丘陵，而且灌溉条件很差。)
Better irrigation can dramatically improve crop yield and about 40% of the world's food supply is currently derived from irrigated land.(更好的灌溉可以显著提高作物产量；目前，全球约40%的粮食供应都来自于灌溉地。)
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