 |
| |||
| mean daily permissible concentration level for settlements (Yeldar Azanbayev) | |||
| среднесуточная предельно-допустимая концентрация: 3 phrases in 3 subjects |
| Ecology | 1 |
| General | 1 |
| Weapons of mass destruction | 1 |
|
| |||
| mean daily permissible concentration level for settlements (Yeldar Azanbayev) | |||
| среднесуточная предельно-допустимая концентрация: 3 phrases in 3 subjects |
| Ecology | 1 |
| General | 1 |
| Weapons of mass destruction | 1 |