天气改造 weather modification
Weather modification is the act of intentionally manipulating or altering the weather. Weather modification researchers aspire to eliminate or control dangerous types of weather such as tornado.
天气改造是有意识地控制或改变天气的行为。天气改造的研究者希望消除或控制危险的天气类型，例如龙卷风。
More than 2,000 counties in China use weather modification, with artificial rain used across an area covering 5 million square km, about half of China’s total land area.
中国有2000多个县对天气进行过改造，其中，使用过人工降雨手段的土地达500万平方公里，超过中国一半以上陆地面积。
