water- supply system : 96 phrases in 16 subjects |
Architecture | 4 |
Astronautics | 2 |
Aviation | 1 |
Caspian | 1 |
Construction | 33 |
Ecology | 3 |
Electronics | 3 |
Energy industry | 13 |
General | 11 |
Makarov | 3 |
Oil / petroleum | 4 |
Oil and gas | 3 |
Production | 2 |
Technology | 3 |
Water resources | 1 |
Water supply | 9 |