Sign in | English | Terms of Use
DictionaryForumContacts

   Chinese ⇄ English
Google | Forvo | +
屈光率单位
earth.sc. diopter
屈光率单位透镜焦点距离米的倒数，凸透镜为+,凹透镜为-
gen. diopter

 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