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rotary drilling machine; rotary drilling rig; rotary rig |
旋 转 钻钻机 : 52 phrases in 11 subjects |
Bridge construction | 2 |
Business | 2 |
Electronics | 1 |
Engineering geology | 2 |
General | 1 |
Mechanic engineering | 1 |
Metallurgy | 2 |
Mining | 4 |
Oil / petroleum | 1 |
Rail transport | 2 |
Technology | 34 |