地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.据说这枚陨星是在热分解的化学过程中形成的。It is said that the magnetite was formed by a chemical pro...

“陨星”的拼音为：yǔn xīng...

“陨星”的英语可以翻译为：[天] meteor，meteorite，uranolith ...