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修正 系 数 : 69 phrases in 16 subjects |
Automobiles | 1 |
Aviation | 4 |
Bridge construction | 9 |
Compressors | 1 |
Electric machinery | 2 |
Electronics | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 2 |
International trade | 1 |
Nautical | 1 |
Oil / petroleum | 1 |
Rail transport | 2 |
Refrigeration | 3 |
Solar power | 2 |
Space | 4 |
Technology | 32 |