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| 地层相互关系; 地层对比图; 地层对比 | |||
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| 地层对比 | |||
| 地层相互关系; 地层对比图 | |||
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stratigraphical correlation : 15 phrases in 5 subjects |
| Drilling | 1 |
| Earth sciences | 3 |
| Geology | 2 |
| Oil / petroleum | 3 |
| Technology | 6 |
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