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| |||
| spiral drill pipe | |||
| auger spindle | |||
| auger pipe; auger rod; auger stem | |||
| |||
| auger stem | |||
|
螺旋钻 杆 : 8 phrases in 4 subjects |
| Drilling | 1 |
| Engineering geology | 1 |
| Oil / petroleum | 3 |
| Technology | 3 |
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