Four specific activities have been identified as major contributors to the desertification processes: over-cultivation, overgrazing, firewood gathering, and over-irrigation.
四项具体活动已被确定为对荒漠化的主要导致的过程：过度农垦，过度放牧，薪柴采集和过度灌溉。
Over the last 40 years, only 4 million hectares of new irrigation have been developed, compared to 25 and 32 million hectares for China and India respectively.
过去四十年来，非洲新增灌溉面积仅为400万公顷，而同期中国和印度的新增面积分别为2500万公顷和3200万公顷。
For decades, central Asia's environment has suffered from over-ambitious Soviet-era irrigation projects.
几十年来，中亚地区的环境因苏联时代的雄心勃勃灌溉计划而遭受了许多破坏。
Spray irrigation sprinkling water over land to be used for crops. often used to dispose of wastewater from sewage treatment plants.
喷洒灌溉，喷灌把水喷洒于准备种植作物的土地上。常常使用经过污水厂处理过的废水。
Over 1.179 million hectares of farmland was increased with effective irrigation systems and another additional 1.390 million hectares of farmland was guaranteed by water-saving irrigation systems.
全年新增有效灌溉面积117.9万公顷，新增节水灌溉面积139.0万公顷。
Third, circulating water is used for industrial purposes over and over in factories and treated sewage water is used for irrigation in farming land.
第三，循环水用于工业用途，在工厂和处理过的污水用于灌溉的农业土地。
Third, circulating water is used for industrial purposes over and over in factovies and treated sewage water is used for irrigation in farming land.
第三，循环水用于工业用途，遍地和处理的污水用于灌溉农业土地。
For over two thousand years, it has been playing a role in the Chengdu Plain flood irrigation, as people from the flood, the vast" the land of abundance".
两千多年来，它一直发挥着防洪灌溉作用，使成都平原成为水旱从人、沃野千里的“天府之国”。
Until they learn to care, the frozen limbs could not move, the servant to me under irrigation, hot water, covered with a blanket around him, and after a long time to warm over.
到学舍后，四肢冻僵了不能动弹，仆人给我灌下热水，用被子围盖身上，过了很久才暖和过来。
Over 80 percent of Afghanistan's people live in rural areas, where they have seen many of their basic resources — water for irrigation, trees for food and fuel — lost in just a generation.
百分之八十以上的阿富汗人生活在农村，在那儿，他们亲眼目睹祖辈赖以为生的基本资源——灌溉用水，生活以及燃烧用林木在十年之内便消失殆尽。
Thee newly created John Deere Water was put under the parent company's agriculture and turf division and marketing was given over to a sales force specializing in farm equipment not irrigation.
当时，新创建的约翰迪尔水公司被放在了母公司的农业和草坪部门，该部门只是专门进行农场机械方面的产品营销，而不是农场灌溉的设备销售专业部门。
Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and over irrigation.
导致沙漠化的主要因素有四个：过度种植，过度放牧，过分砍伐，过度灌溉。
Didn't you see an irrigation ditch over there?
你没看到哪边有一条灌溉的渠道吗？
The final major human cause of desertification is soil salinization resulting from over irrigation.
造成土地沙漠化的最后一个主要人为因素在于人类过度灌溉导致土壤的盐碱化。
Based on the water temperature stratification in different periods, the influence of water temperature over water quality and agriculture irrigation is analyzed.
根据各时期水温分布，本文分析了水库的温度分层对水库水质的影响以及对农业灌溉的影响。
Light well combines with automatic irrigation plant box on the roof together bring light and cast shadow over upper floor, also depict lush screen for the child's bedroom.
阳光透过屋顶上的自动灌溉植物箱的植株，在二楼撒上一片交织的光影，为儿童房增色不少。
Trapezoidal channel with its over-current capacity, sediment transport capacity, construction of simple and commonly used features has been widely used in irrigation.
梯形渠道以其过流能力大、输沙能力强、施工简便的特点，已经在灌区得到了广泛应用。
It was built over 2,000 years ago and is still playing an important part in irrigation.
它建于2,000多年以前，现在在灌溉中仍起着重要的作用。
Supplemental irrigation at over-wintering, jointing or filling stage significantly increased the nitrogen uptake by plant and decreased the nitrogen residual 47.
通过温室培养试验，研究了不同生长期缺水和补充灌水对冬小麦氮素吸收利用和土壤残留的影响。
Lawn and grass problems are most often traced to poor irrigation design and maintenance, and while most lawn grass varieties require significant irrigation, they're also susceptible to over-watering.
草坪草的问题最常追溯到不良灌溉设计和维护，而大多数草坪草品种需要大量的灌溉，他们也很容易受到过度浇水。
Saline nasal sprays and irrigation kits can be purchased over-the-counter.
生理盐水鼻腔喷雾剂和灌溉工具包就可以买到柜台。
The irrigation water demand accounts for over 60 percent of the total water demand in the Huai River Basin.
淮河流域农业灌溉用水量占总用水量的60%以上。
The irrigation water demand accounts for over 60 percent of the total water demand in the Huai River Basin.
淮河流域农业灌溉用水量占总用水量的60%以上。
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