英文：The meteorological study of climates and their phenomena.
中文：气候学对气候及其引起的现象进行的气象研究
英文：A meteorological condition characterized by the uniform expansion in volume of a mass of air over a region, usually accompanied by fair dry weather.
中文：辐散, 散度一种天气状况, 特征为：在气团均匀地散在某一地区上空, 常伴有晴朗干燥天气
英文：An instrument carried aloft, chiefly by balloon, to gather and transmit meteorological data.
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