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| 可回收封隔器 | |||
| 可取出封隔器; 可收回封隔器 | |||
| 可拆改的包装机; 可卸式封隔器; 可卸式堵塞器; 可回收式封隔器 | |||
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retrievable packer : 17 phrases in 4 subjects |
| Drilling | 5 |
| Earth sciences | 1 |
| Mining | 3 |
| Oil / petroleum | 8 |
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