 |
| |||
| 用起重机起吊 | |||
| 改变起重臂倾角 | |||
|
derricking : 20 phrases in 3 subjects |
| Bridge construction | 1 |
| Oil / petroleum | 1 |
| Technology | 18 |
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