rain fall

常见例句

The leading factors to damp-surface were rain-fall time, rain fall intensity and the interactions between land-use type and the slope.
通过分析揭示了各因素对湿润锋的影响程度，湿润锋的下行深度与降雨历时和降雨强度呈正相关，土地利用方式不同。
Second indirect effect is existed when tropical cyclone moves toward the north. The heavy rain-fall of inversion trough has not only arisen in downstream of easter…
热带气旋北上时，存在第二类间接作用，不仅在东风急流下游能出现倒槽暴雨，还有利于热带气旋下游的副热带高压另一侧产生特大降水。
The kernels of the rain conservation irrigation technology are increasing effective rain- fall, decreasing evaporation and sufficiently using soil water to satisfy the crops demands.
保雨灌溉技术的核心是向天空要水，与蒸发夺水，充分利用自然降水和土壤水分，满足作物需要。

The problem was the rain-fall and the Chagres River.
FORBES: Fact and Comment
But pumping water from land on which only 7-10 inches (18-25 centimetres) of rain fall each year makes ranchers nervous, even though some of the water is not fit for use.
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While Isaac is likely to become a hurricane today, Fugate and Knabb urged those in the path of the storm to focus less on its particular classification and more on the storm's size and the potential for a storm surge that could reach 6 to 12 feet -- as well as record levels of rain fall.
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