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伏 安 计 : 49 phrases in 14 subjects |
Air defense | 1 |
Automobiles | 1 |
Earth sciences | 1 |
Electric machinery | 2 |
Electricity | 1 |
Electronics | 12 |
General | 7 |
Geophysics | 2 |
Hydroelectric power stations | 5 |
Metallurgy | 1 |
Oil / petroleum | 1 |
Physics | 1 |
Shipbuilding | 2 |
Technology | 12 |