用该公式计算华南前汛期锋面云系自然降水效率，并探讨人工播云的可能性。
The formula was used to calculate the precipitation efficiency and the precipitation stimulation possibility of frontal clouds du-ring the first rainy season in South China.
用该方法计算华北地区降水性层状云两次降水过程的平均降水效率分别为68%和59%。
The precipitation efficiencies of two stratiform clouds processes over North China are 68% and 59% respectively.
强降水常出现在台风前进方向的右前侧，相同的垂直累积液态水含量受地形等因素影响“降水效率”差异极大。
Because of the impacts of topography, there is very different precipitation even though the vertically integrated liquid water in the same.
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。
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.
工程实践表明，水平降水有较高的效率。
The project practice indicates, there is relatively high efficiency in horizontal precipitation.
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。
Fully raising rainfall use efficiency of farm-land is the basis of high efficient utilization to limited water in dry-land farming.
氮素利用效率与作物生育期降水量有很大关系。
Nitrogen using efficiency mainly relates with precipitation during crop growth stage.
提高自然降水和灌溉水利用效率是节水农业要解决的中心问题。
The key problem needed to be solved in water saving agriculture is to increase the utilization efficiency of rainfall and irrigation.
提高自然降水和灌溉水利用效率是节水农业要解决的中心问题。
The key problem needed to be solved in water saving agriculture is to increase the utilization efficiency of rainfall and irrigation.
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