Sign in | English | Terms of Use
DictionaryForumContacts

   English ⇄ Chinese
Google | Forvo | +
dual main system
tech. 双干管制; 双干管系统; 双干管式
dual-main system
ecol. 双干管制

 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