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Terms
for subject
Drilling
containing
on-off
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all forms
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in specified order only
English
Chinese
clutch
on-off
离合器的离合
on-off
bottom pressure drop
钻头提离井底前后的压降
on-off
connector
通断接头
on-off
connector
双位接头
on-off
servo device
伺服开关
twist-off on the bottom
钻头切屑刃在井底折断
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