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定方位: 162 phrases in 16 subjects |
Aviation | 9 |
Computers | 2 |
Drilling | 2 |
Education | 1 |
Electronics | 4 |
General | 34 |
Geology | 2 |
Information technology | 1 |
Military | 23 |
Nautical | 3 |
Oil / petroleum | 1 |
Oil and gas | 1 |
Oil processing plants | 3 |
Radio | 1 |
Shipbuilding | 2 |
Technology | 73 |