| |||
available chlorine | |||
active chlorine | |||
chlorine available | |||
available chlorine (после хлорирования воды) |
активный хлор : 7 phrases in 5 subjects |
Chemistry | 1 |
Ecology | 1 |
Natural resourses and wildlife conservation | 1 |
Water resources | 2 |
Water supply | 2 |