 |
| |||
| negative ion concentration | |||
| концентрация отрицательных ионов: 10 phrases in 7 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Military | 2 |
| Polymers | 1 |
| Technology | 3 |
| Weapons of mass destruction | 1 |
|
| |||
| negative ion concentration | |||
| концентрация отрицательных ионов: 10 phrases in 7 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Construction | 1 |
| Military | 2 |
| Polymers | 1 |
| Technology | 3 |
| Weapons of mass destruction | 1 |