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刮管
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刮管
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刮管
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刮管
利用套管刮削工具将套管内壁上的水泥及炮眼毛刺清除掉从而保证井下工具正常工作及封隔器成功坐封的投产措施。又称套管刮削。
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urticaria papulosa
urticating caterpillar
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urtite
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Urumqi-Changji Integration Area
Urumqi Confucian Temple)
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