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噪声 电平 : 78 phrases in 13 subjects |
Air defense | 9 |
Electric machinery | 1 |
Electronics | 24 |
Geophysics | 3 |
Information technology | 6 |
Metallurgy | 2 |
Multimedia | 1 |
Nautical | 1 |
Shipbuilding | 1 |
Space | 5 |
Technology | 19 |
Telecommunications | 5 |
Transport | 1 |