它们涉及的领域从环境保护、全球变暖到水服务的公平定价以及灌溉、工业和家庭用水的公平分配。
They range from protection of the environment and global warming to fair pricing of water services and equitable distribution of water for irrigation, industry and household use.
以色列灌溉只浪费约十分之一的水，如果每个国家都同样高效用水的话，世界水问题压力将大大减少。
Israel wastes only about a tenth of its water, and if everyone were equally efficient, the world's water problem would be much less pressing.
毫无疑问，脱盐会增加可饮用水的量，可以增加有些工业过程所必需的高纯水的供给，甚至还能增加高等作物(尤其是为出口而种植的作物)灌溉水的供给。
It will undoubtedly add to the supply of drinking water, of the ultra-pure water required for some industrial processes, even of irrigation for high-value crops, especially if grown for export.
灌溉咔特也耗费备用水，还总会很快把水用光。
Irrigating qat is also a drain on water reserves that are anyway drying up fast.
有人在书中提到利用圣约翰河的水灌溉，最终成为饮用水的规划，然而仍有人怀疑这样是否就能满足Or lando ' s日益增长的需求。
There are plans in the works to tap the St. John's River for irrigation, and eventually drinking water. Many, however, are skeptical that even this will be enough to meet Orlando's growing demand.
在对灌区来水和需水随机性分析的基础上，建立了一种确定灌区灌溉用水保证率的计算模型。
A calculation model is established in the paper for determining the water use ensurance probability based on the statistic analysis of irrigation area inflow and water needed.
肉类和奶制品的生产占用了地球30%的陆地面积，70%的农业用地，使用了8%的人类用水，这些水主要用于饲料作物的灌溉。
Meat and dairy production use 30% of the earth's land surface, 70% of agricultural land and account for 8% of the water humans use, mostly to irrigate feed crops.
灌溉工程的量水设施是计量灌溉用水量，征收水费的依据，也是合理配水调度的重要手段。
The water-measuring devices of irrigation engineering are the basis of levying water charge, and also an important method of rational regulation of water resources.
灌区量水，是实行计划用水、正确分配、合理使用灌溉水的重要手段，是实行计量收费的重要保证。
Irrigation district water-measuring is the important method and guarantee of practising using water planly, assignment accurately, using irrigation water equably and meterage.
适用于地下水位较低的场所及其它扬程要求高的场合，如矿井、高楼大厦、自来水增压、山区果农灌溉用水等。
Applies to the lower groundwater levels for high head sites, and other occasions, such as mines, high-rise buildings, water booster, mountain water for irrigation and other fruit.
所得结果符合灌区灌溉用水的实际情况，该优化配水方法具有通用性。
The result accorded with the practical situation of water use in irrigation area.
所得结果符合灌区灌溉用水的实际情况，该优化配水方法具有通用性。
The result accorded with the practical situation of water use in irrigation area.
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