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施工 计 划 : 59 phrases in 12 subjects |
Architecture | 2 |
Aviation | 2 |
Bridge construction | 10 |
Coal | 1 |
Commerce | 1 |
Economy | 2 |
Engineering geology | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 4 |
Rail transport | 2 |
Space | 2 |
Technology | 31 |