 |
| |||
| раствор борной кислоты | |||
|
boron solution : 6 phrases in 3 subjects |
| Construction | 1 |
| Energy industry | 4 |
| Nuclear and fusion power | 1 |
|
| |||
| раствор борной кислоты | |||
|
boron solution : 6 phrases in 3 subjects |
| Construction | 1 |
| Energy industry | 4 |
| Nuclear and fusion power | 1 |