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控制指令 : 177 phrases in 22 subjects |
Advertising | 1 |
Air defense | 5 |
Automobiles | 9 |
Aviation | 57 |
Business | 2 |
Computers | 5 |
Corporate governance | 1 |
Drilling | 2 |
Electric machinery | 2 |
Electronics | 23 |
General | 1 |
Geophysics | 1 |
Information technology | 10 |
Metallurgy | 1 |
Military | 1 |
Oil / petroleum | 1 |
Planning | 1 |
Project management | 1 |
Shipbuilding | 1 |
Space | 31 |
Technology | 14 |
Telecommunications | 7 |