Sign in | English | Terms of Use
DictionaryForumContacts

   English ⇄
Google | Forvo | +
bracing the bit
dril. 钻头加固; 给钻头镶金刚石或硬合金
tech. 支撑钻头

 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