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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。
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multiple time-step method
multiple traits selection
multiple transform
multiple transitivity
multiple trip casing drilling technology
multiplets
multiplet structure
multiple t-test
multiple unitary representation
multiple unit steerable antenna
multiple-unit sustained/controlled release preparations
multiple unit train
multiple user control
multiple user operating system
multiple-use theater
multiple value
multiple-valued
multiple-valued function
multiple-valued logic
multiple-valuedness
multiple value logic
multiple-value logic
multiple warhead
multiple wave
multiple-wave interference
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更新时间:2025/4/26 10:48:21