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超高频 : 187 phrases in 24 subjects |
Air defense | 23 |
Artificial intelligence | 1 |
Automobiles | 2 |
Aviation | 21 |
Construction | 2 |
Earth sciences | 3 |
Electric machinery | 1 |
Electronics | 21 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 10 |
Geophysics | 5 |
Information technology | 3 |
Metallurgy | 4 |
Nursing | 1 |
Oil / petroleum | 4 |
Plastics | 1 |
Rail transport | 1 |
Securities | 1 |
Shipbuilding | 1 |
Space | 10 |
Technology | 65 |
Telecommunications | 2 |
United Nations | 3 |
Water resources | 1 |