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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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invoice criminal cases
involatile
involucel
involucre
involucrellum
involucret
involuntary attention
involuntary client
involuntary commitment and treatment
involuntary movement
involuntary resettlement
involuntomotory
involute
involute conical gear
involute cylindrical gear drive
involute cylindrical gear reducer
involute helicoid
involute of a circle
involute of a curve
involute of evolute
involute planetary reducer with small difference between the numbers of teeth
involution
involution algebra
involutional system
involution axioms
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