 |
| |||
| 环形杆件; 钢领板; 环形母线; 环形汇流条 | |||
|
ring bar : 11 phrases in 6 subjects |
| Air defense | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Technology | 5 |
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