搜索结果: 1-1 共查到“天文学 the ozone layer”相关记录1条 . 查询时间(0.021 秒)
![](http://www.firstlight.cn/upload/imgfile/201010/12/20101012165721.jpg)
A mid-sized asteroid impact with the ocean could drastically deplete the ozone layer for many years, according to a team of US researchers. Such damage would expose the surface to levels of UV radiati...