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| hole azimuth; dip direction; direction of deflection; drift bearing | |||
| direction of well deflection | |||
| hole deviation azimuth | |||
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| hole deviation azimuth; drift azimuth | |||
| 井斜方 位: 12 phrases in 3 subjects |
| Drilling | 6 |
| Nautical | 2 |
| Oil / petroleum | 4 |
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