 |
| |||
| 地下管道; 暗式管道; 地埋管 | |||
| 暗管 | |||
| 地下管 (道) | |||
|
underground pipe : 12 phrases in 5 subjects |
| Agriculture | 1 |
| Ecology | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Technology | 8 |
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