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система канализации | |||
водосток |
下水系 统: 67 phrases in 14 subjects |
Aviation | 1 |
Construction | 1 |
Drilling | 2 |
Electronics | 1 |
General | 44 |
Nautical | 6 |
Navy | 1 |
Oil and gas | 2 |
Oil and gas technology | 1 |
Oilfields | 1 |
Refrigeration | 1 |
Technology | 4 |
Thermal engineering | 1 |
Water resources | 1 |