 |
| |||
| lock head; head-bay of lock | |||
| gate bay; head bay of lock | |||
| 船闸闸 首: 4 phrases in 3 subjects |
| Earth sciences | 1 |
| Hydroelectric power stations | 2 |
| Technology | 1 |
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