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marble | |||
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taw |
石弹 : 44 phrases in 13 subjects |
Air defense | 2 |
Automobiles | 1 |
Chemistry | 1 |
Drilling | 1 |
Electronics | 1 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 6 |
General | 9 |
Geophysics | 1 |
Metallurgy | 4 |
Oil / petroleum | 5 |
Space | 1 |
Technology | 10 |