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| 膨胀式封隔器 | |||
| 膨胀型封隔器; 充气止浆塞; 充气封隔器; 充气垫 | |||
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inflatable packer : 10 phrases in 3 subjects |
| Drilling | 3 |
| Mining | 2 |
| Oil / petroleum | 5 |
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