水利工程专业词汇英语翻译 ... 地形降水 Precipitation， orographic 季节降水量 Precipitation， seasonal 预冷 Pre-cooling ...
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利用1 951年至1 996年地面气象记录资料，计算了我国全年和季节降水量长期变化趋势特征指数。
By using surface data from 1951 to 1996, the long term change trend index of annual and seasonal precipitation of China is calculated.
结果表明：年降水量、季节降水量、年空气相对湿度和季节相对湿度均呈明显下降趋势。特别是夏、秋季下降趋势更加显著。
The results showed that annual and seasonal precipitation and relative air humidity all took on an evident downtrend, more prominent in summer and autumn.
石河子绿洲的温度、降水量以及空气湿度具有明显的季节变化特征。
The variation characteristics of temperature, precipitation and air humidity in the Shihezi Oasis have apparent seasonal.
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