“downhole motor”的概念、定义、翻译、参考文献-科学参考

单词	downhole motor
释义	downhole motor Encyclopedia 工学钻井装备释 downhole motor井下动力钻具连接在钻铤与钻头之间，随钻柱一起下入井底，驱动钻头旋转破岩的动力机。又称井下马达。理学钻具释 downhole motor孔底动力钻具位于钻柱下部，由钻井液（循环介质）或电力驱动，实现回转、冲击碎岩的钻具。
随便看	seed-field model seed fill algorithm seed garder seed germination accelerating seed harvester seedholder seed industry policy seeding seeding devices of electric heating seeding method of fruit trees Seediq language seed irradiation seed key seed law seedless seedless fruit seedless rotating crucible growth method seedling seedling bank seedling breeding of crab seedling breeding of Litopenaeus vannamei seedling breeding of Portunus trituberculatus seedling breeding of shrimp seedling cultivation of Gracilaria tenuistipitata seedling cultivation of Gracilariopsis lemaneiformis

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