Sign in | English | Terms of Use
DictionaryForumContacts

   English ⇄
Google | Forvo | +
geochron ['dʒiəukrɔn] n
gen. 地质时间
oil 地质年代
tech. 岩石地层时; 地质时期间隔; 地时间过程

 The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error | Get short URL | Language Selection Tips