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| 套管射孔枪套管射孔用的一种装置，装有聚能药柱或子弹，下至预定井深后发射，在套管、水泥环和地层中造成孔道，便于油气流人井内 | |||
| 套管射孔枪 | |||
| 套管射孔器 | |||
| 套管冲孔枪; 弹筒打孔机 | |||
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casing gun : 5 phrases in 3 subjects |
| Drilling | 1 |
| Geophysics | 2 |
| Oil / petroleum | 2 |
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