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| 钻管 | |||
| 钻探管; 钻杆 | |||
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drill pipe plug : 298 phrases in 11 subjects |
| Drilling | 85 |
| Earth sciences | 9 |
| Engineering geology | 2 |
| General | 1 |
| Geophysics | 3 |
| Mechanics | 11 |
| Metallurgy | 6 |
| Oil / petroleum | 90 |
| Shipbuilding | 1 |
| Steel production | 2 |
| Technology | 88 |
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