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filling system: 35 phrases in 21 subjects |
Astronautics | 2 |
Automobiles | 1 |
Aviation | 3 |
Computers | 1 |
Construction | 4 |
Energy industry | 2 |
Food industry | 1 |
Forestry | 1 |
General | 2 |
Geology | 1 |
Mining | 2 |
Nautical | 2 |
Nuclear and fusion power | 1 |
Oil / petroleum | 3 |
Oil and gas | 1 |
Oilfields | 2 |
Refrigeration | 1 |
Shipbuilding | 1 |
Technology | 2 |
Transport | 1 |
Weapons of mass destruction | 1 |