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键槽扩大器
释义
键槽扩大器
Encyclopedia
工学
井下工具
释
keyseat reamer
键槽扩大器
连接于钻铤上方,用于破坏井身键槽,使钻铤免于键槽卡钻的装置。又称键槽破坏器。
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ultimate strength
ultimate strength design method
ultimate strengthdesign method
ultimate tensile strength
ultimate uniform boundness
ultimate vacuum
ultimatum
Ultime Secret
ultor
ultra-
ultra-acoustic
ultrabarrelled
ultrabarrelled space
ultrabasic glass
ultrabasic rock
ultrabornological
ultrabornological space
ultraboundedness
ultra bright
ultra broadband seismometer
ultracentrifugal
ultra-centrifugal sedimentation
ultracentrifugation
ultracentrifuge
ultracharacteristic subgroup
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