1、"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。)
2、It was a three-year waterirrigation project.(这是一项为期三年的灌溉工程。)
3、Donna helped the people of the village to organize anirrigation 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。)
4、Most of these operations drawirrigation 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。)
5、Only by using modernirrigation 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。)
6、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。)
7、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。)
8、Certainirrigation 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。)
9、The agricultural land is hilly and theirrigation poor.(这片农田多丘陵，而且灌溉条件很差。)
10、Betterirrigation 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。)
11、The rivers merge just north of a vitalirrigation system.(这些河流在一个重要的灌溉系统的北部汇合了。)
12、They increased the need for extensiveirrigation in the Teotihuacán Valley.(他们在特奥蒂瓦坎山谷广泛灌溉的需要增加了。)
13、However, water used inirrigation is often sourced unsustainably.(然而，灌溉用水的来源往往不是可持续的。)
14、The low utilization efficiency has resulted from the adoption of some traditional Chineseirrigation methods.(利用效率低的原因是采用了中国一些传统的灌溉方式。)
15、To make matters worse, some of the traditional Chineseirrigation methods have wasted an astonishing amount of water.(更糟糕的是，一些中国传统的灌溉方式浪费的水量令人惊讶。)
16、Rivers and lakes provide us with water transport andirrigation.(江河湖泽给我们以舟楫和灌溉之利。)
17、If theirrigation plan goes ahead, it could spell disaster for the birds.(如果该灌溉计划继续的话，这对鸟类可能预示着灾难。)
18、It was this that made the organization ofirrigation, particularly the building of canals to channel and preserve the water, essential.(正是这点使得灌溉的统筹，特别是建造运河以疏导和保护水，变得至关重要。)
19、irrigation is easy in the South because of the abundance of water.(南方多水，利于灌溉。)
20、Millions ofirrigation 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正以超过降雨所能补充的速度从地下水源抽水。)
21、The project finances small scaleirrigation systems, feeder roads and other types of community infrastructure.(该项目资助小型灌溉系统、支路和其他类型的社区基础设施。)
22、The ensuing rapid expansion ofirrigation agriculture, especially from the 1950s onward, transformed the economy of the region.(随之而来的灌溉农业的迅速发展，特别是从20世纪50年代以来，改变了该区域的经济。)
23、The biggest challenge here isirrigation, which consumes 70% of the world's fresh water.(这里最大的挑战是灌溉，因为这消耗了世界上70%的淡水。)
24、irrigation is the primary agricultural use of human waste in the developing world.(在发展中国家，灌溉是人类排泄物的主要农业用途。)
25、Moreirrigation works would have to be built to feed the growing population, and this resulted in more power and wealth for the elite.(国家必须修建更多的灌溉工程来养活不断增长的人口，这为精英阶层带来了更多的权力和财富。)
26、Hydroelectric power and flood control andirrigation are possible without building monster dams.(水力发电、防洪和灌溉都不需要建造大型水坝。)
27、Excess water fromirrigation sinks down into the water table.(灌溉产生的多余水分渗入地下水。)
28、Small blockages or collapses of the canal would choke the intricateirrigation networks.(运河的小堵塞或崩塌会阻塞错综复杂的灌溉网络。)
