 |
| |||
| energy efficiency | |||
| 能量效率: 8 phrases in 6 subjects |
| Agriculture | 1 |
| Animal husbandry | 1 |
| Aviation | 3 |
| Electronics | 1 |
| Nuclear physics | 1 |
| Space | 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