 |
| |||
| 底沟; 隧道底沟 | |||
|
bottom channel : 9 phrases in 7 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Bridge construction | 1 |
| Earth sciences | 1 |
| Hydrology | 1 |
| Plastics | 1 |
| Technology | 3 |
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