 |
| |||
| 转动中心 | |||
| 旋转中心; 回转顶尖 | |||
| rotating center: 3 phrases in 3 subjects |
| Bridge construction | 1 |
| Hydroelectric power stations | 1 |
| 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