предельно-допустимая концентрация : 33 phrases in 15 subjects |
Brewery | 1 |
Chemistry | 4 |
General | 3 |
Hygiene | 1 |
Medical | 2 |
Mining | 2 |
Nuclear and fusion power | 1 |
Nuclear physics | 11 |
Plastics | 2 |
Polymers | 1 |
Security systems | 1 |
Sewage and wastewater treatment | 1 |
Shipbuilding | 1 |
Toxicology | 1 |
Wood processing | 1 |