The meteorological study of climates and their phenomena.气候学对气候及其引起的现象进行的气象研究
A meteorological condition characterized by the uniform expansion in volume of a mass of air over a region, usually accompanied by fair dry weather.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
An instrument carried aloft, chiefly by balloon, to gather and transmit meteorological data.无线电高空测候器一种被带到高空(主要由气球)进行气象数据收集和传送的仪器
