 |
| |||
| oxygen хим. deficiency | |||
|
负氧 : 42 phrases in 9 subjects |
| Agriculture | 2 |
| Chemistry | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 6 |
| Polymers | 3 |
| Technology | 21 |
| Water resources | 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