 |
| |||
| 天然力; 自然力 | |||
| 自然功率 | |||
| natural power: 21 phrases in 7 subjects |
| Air defense | 1 |
| Construction | 1 |
| Electronics | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 2 |
| Rail transport | 1 |
| Technology | 12 |
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