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Terms for subject Drilling containing coverage | all forms | exact matches only
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bottom hole coverage钻头齿圈对井底覆盖程度
bottom hole coverage钻头与井底接触面积
bottom hole coverage rate钻头齿圈对井底的覆盖率
bottom-hole coverage井底覆盖
hole coverage钻头在井底覆盖面积
hole coverage钻头齿与井底接触面积

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