| |||
filter system; septic field (Pickman) | |||
filter |
фильтрующей системы : 18 phrases in 10 subjects |
Automated equipment | 1 |
Aviation | 1 |
Drilling | 1 |
Ecology | 1 |
Electronics | 1 |
Energy industry | 6 |
Makarov | 1 |
Rail transport | 1 |
Technology | 4 |
Water supply | 1 |