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单孔 | |||
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单孔的 | |||
单孔 |
single hole : 34 phrases in 10 subjects |
Agriculture | 1 |
Air defense | 1 |
Automobiles | 4 |
Electronics | 2 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 5 |
Geophysics | 1 |
Metallurgy | 12 |
Oil / petroleum | 1 |
Technology | 5 |