Sign in | English | Terms of Use
DictionaryForumContacts

   English ⇄
Google | Forvo | +
polybasic ion
el. 混合基离子
tech. 多元碱离子
polybasic ions
water.res., ecol. 多元离子

 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