 |
| |||
| 车身通道段 | |||
| 隧道横断面 | |||
| tunnel section: 35 phrases in 6 subjects |
| Bridge construction | 1 |
| Metallurgy | 2 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 22 |
| Wind Energy | 7 |
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