 |
| |||
| diamond coring | |||
|
金刚石钻头取心 : 17 phrases in 4 subjects |
| Drilling | 6 |
| Mechanics | 1 |
| Oil / petroleum | 5 |
| Technology | 5 |
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