1·One of the advantages of modern irrigation methods is that they alone can save 20-30 percent of the present volume of wasted irrigation water.
现代灌溉方法的优点之一是,仅凭它们就可以节省目前灌溉用水浪费量的20%-30%。
2·Most of these operations draw irrigation water from local rivers or lakes.
这些运行大多要从当地河湖里抽取灌溉水。
3·Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.
在干旱的热带地区,提供灌溉水的最低成本的方法通常是建造小规模的工程。例如,在洼地收集雨水,然后将其抽调至附近的农田。
4·And almost all of the irrigation water is from underground.
几乎所有灌溉用水都来自地下。
5·There is no cavitation damage and irrigation water and so on.
不存在汽蚀破坏及灌引水等问题。
6·The pollutions were related to soil, fertilizer, irrigation water and air.
污染和土壤、肥料、灌溉水及空气有关。
7·The Ogallala aquifer is a major source of drinking and irrigation water for America's central plains.
奥加拉拉蓄水层是美国中部平原饮用和灌溉用水的主要来源。
8·India's monsoon rains are the main source of irrigation water for the country's 235 million farmers.
印度的季风雨是全国两亿三千五百万农民的灌溉水主要来源。
9·If the Australian drought continues, the thousands who depend on irrigation water for a living will be in deep trouble.
如果澳大利亚的干旱持续下去,数以千计、依赖于灌溉用水生存的人们将会遇到大麻烦。
10·Make drought water use plans to secure irrigation water after allocating enough water for urban and rural daily water consumption.
制定抗旱用水计划,在留足城乡群众生活用水前提下,保证抗旱灌溉水量。
1·Most of these operations draw irrigation water from local rivers or lakes.
这些运行大多要从当地河湖里抽取灌溉水。
2·Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.
在干旱的热带地区,提供灌溉水的最低成本的方法通常是建造小规模的工程。例如,在洼地收集雨水,然后将其抽调至附近的农田。
3·The pollutions were related to soil, fertilizer, irrigation water and air.
污染和土壤、肥料、灌溉水及空气有关。
4·The utilization coefficient of irrigation water contains the utilization coefficient of canal system water and field water.
灌溉水利用系数包括渠系水利用系数和田间水利用系数。
5·The order of water use efficiency and irrigation water use efficiency was both as follows: SM> ZM> SC.
水分利用效率和灌溉水利用效率均为稻草覆盖旱作>裸地旱作>常规水作。