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| 跨地层双封隔器地层测试; 双封隔器选择性中途测试 | |||
| 跨式地层测试; 双封隔器选择性地层测试 | |||
| straddle test: 9 phrases in 5 subjects |
| Drilling | 1 |
| Geophysics | 1 |
| Mining | 1 |
| Oil / petroleum | 5 |
| Technology | 1 |
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