... downhole motor 井下动力钻具 downhole motor drilling 井下动力钻具钻井 Dragendorff's reagent 碘化铋钾试剂 ...
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... 2.3.6 顶部驱动钻井 top drive drilling 2.3.7 井底动力钻井 downhole motor drilling 2.3.7.1 涡轮钻井 turbodrilling ...
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downhole drilling motor 井底动力钻具
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