“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	Nicaragua Nicaragua ,cinema in Nicaragua, Lago de Nicaraguan Art Nicaraguan Canal and Development Project Nicaraguan Civil War in 1893 Nicaraguan Confederation of Workers Nicaraguan Democratic Force Nicaraguan Democratic Movement Nicaraguan Democratic Union-Nicaraguan Revolutionary Armed Forces Nicaraguan literature Nicaraguan Revolution Nicaraguan Social Christian Party Nicaraguan Socialist Party Nicaragua’s Constitution of 1987 niccolite Niccolo Niccolo Fontana Niccolo Jommelli Niccolo Tommaseo Niccolò Machiavelli Niccoló Longobardo nice nice decomposition nice dimension

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