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铸石: 95 phrases in 13 subjects |
Automobiles | 3 |
Chemistry | 2 |
Drilling | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 27 |
Mining | 1 |
Oil / petroleum | 5 |
Plastics | 1 |
Shipbuilding | 1 |
Space | 3 |
Technology | 48 |