rain fall

基本解释

The leading factors to damp-surface were rain-fall time, rain fall intensity and the interactions between land-use type and the slope.
通過分析揭示了各因素對溼潤鋒的影響程度，溼潤鋒的下行深度與降雨歷時和降雨強度呈正相關，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…
熱帶氣鏇北上時，存在第二類間接作用，不僅在東風急流下遊能出現倒槽暴雨，還有利於熱帶氣鏇下遊的副熱帶高壓另一側産生特大降水。
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.
保雨灌溉技術的核心是曏天空要水，與蒸發奪水，充分利用自然降水和土壤水分，滿足作物需要。

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.
ECONOMIST: Energy supplies
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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Rainfall is the amount of rain that falls in a place during a particular period.

降水
Rainfall would be affected by that wave train .
這一波列會影響我國華北地區的降水。
降雨
The simulation of rainfall-runoff is an important part of hydrology simulation.
降雨逕流模擬是水文模擬的重要組成部分。
下雨量
（降）雨量
降雨量
雨量

降雨
Rainfall is the key factor to soil erosion.
降雨是影響土壤侵蝕的關鍵因素。
降水
The semi-arid area which grows the crops have the characteristics of uneven and little rainfall.
半乾旱地區具有降水不勻和多變低水的特點。
降雨量

雨情
The WEBGIS-based flood-rainfall information query system and automatically-plotting of isohyets are this article key point.
基於WEBGIS的水雨情檢索子系統和等雨量線的繪制是本文的重點。
電子、通信與自動控制技術
降雨量