 |
| |||
| 定位孔 | |||
| location hole: 10 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Drilling | 3 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Mining | 1 |
| Technology | 2 |
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