Water is the main factor influencing crop yield in dryland areas, and the efficient way to increase crop yield is to improve utilization efficiency of precipitation.
水分是限制旱地作物产量最主要的因素，提高自然降水利用效率是增加旱地作物产量的有效途径。
In the realization of water resources, recycling and efficient use of water resources development and utilization of.
水资源，回收利用和水资源开发和利用的有效利用，实现。
For this reason, the scientific and reasonable water resources protection planning should be formulated to realize the high efficient utilization and effective protection of water resources.
为此，必须制定科学、合理的水资源保护规划，以实现水资源的高效利用和有效保护。
Blasting in water medium is an efficient way which is characterised by the highly efficient transmission and improved utilization of blasting energy.
水介质爆破法是一种高效传递爆破能量、提高爆能利用率的有效方法。
Optimizing the water resources allocation and raising the efficiency of water resources utilization are the efficient methods for strengthening the bearing capacity of water resources.
提高水资源合理配置程度和提高水资源利用效率都是增强水资源承载力的有效方法。
Among agriculture measures of high efficient water utilization, straw mulching technique has been used widely in Hebei plain, but the research on mulching quantity was few and on the primary stage.
在农业高效用水一系列农艺措施中，秸秆覆盖技术在河北平原应用较广，但关于覆盖量的研究较少。
Fully raising rainfall use efficiency of farm-land is the basis of high efficient utilization to limited water in dry-land farming.
充分提高农田降水利用效率是旱地农业中有限水高效利用的基础。
This paper presents the life waste water rehabitation system in Chalco Shandong Branch, together with its actual utilization and efficient results.
介绍了中铝山东企业的生活污水回用系统的应用及其效果。
This paper presents the life waste water rehabitation system in Chalco Shandong Branch, together with its actual utilization and efficient results.
介绍了中铝山东企业的生活污水回用系统的应用及其效果。
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