 |
| |||
| фтороводород (HF aivanov) | |||
| hydrogen fluorine: 10 phrases in 5 subjects |
| Astronautics | 3 |
| Nanotechnology | 2 |
| Nuclear and fusion power | 1 |
| Polymers | 1 |
| Technology | 3 |
|
| |||
| фтороводород (HF aivanov) | |||
| hydrogen fluorine: 10 phrases in 5 subjects |
| Astronautics | 3 |
| Nanotechnology | 2 |
| Nuclear and fusion power | 1 |
| Polymers | 1 |
| Technology | 3 |