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孔底动力钻具
释义
孔底动力钻具
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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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Hero of the Greenwood
Herores of the Imperial Ming
Hero Sisters of Grassland
Hero triangle
Hero Wu Song
herpangina
herpes
herpes simplex
herpes simplex viral vector
herpes simplex virus,HSV
herpes simplex virus infection
herpes virus infection
herpesvirus simiae 1 infection
herpesvirus simplex virus type 1
herpesvirus simplex virus type 2
herpes zoster
Herpes zoster oticus
herpetospermi semen
herpolhode
herpolhode cone
herpolhodograph
Herrenhausen Gardens
Herrera
herrerite
Herr Eugen Dühring’s Revolution in Science
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