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控制 方式 : 86 phrases in 23 subjects |
Agriculture | 2 |
Automobiles | 5 |
Aviation | 3 |
Business | 2 |
Communications | 5 |
Computer networks | 1 |
Electric machinery | 1 |
Electronics | 8 |
Explosives and Explosive Ordnance Disposal | 1 |
Geophysics | 1 |
Hydroelectric power stations | 2 |
Information technology | 7 |
Mechanics | 1 |
Metallurgy | 2 |
Nautical | 1 |
Rail transport | 2 |
Shipbuilding | 1 |
Space | 5 |
Steel production | 1 |
Technology | 24 |
Telecommunications | 8 |
United Nations | 2 |
Wind Energy | 1 |