left-hand two-flute drill

基本解释左旋双槽钻头

网络释义

1)left-hand two-flute drill,左旋双槽钻头2)laevogyrate thread,左旋3)laevo-,左(旋)4)left-handed turning,左旋5)left-hand rotation,左旋6)levogyration,左旋7)turn left,左旋8)laevo-,左旋9)Levortary,左旋10)lavevorotaion,左旋

用法和例句

This thread combined laevogyrate thread and dextral thread together in the same part of the thread.

发明了一种新型螺纹—唐氏螺纹,这种螺纹采用的是变截面非完整螺纹,并且将左旋和右旋螺旋线复合 在同一段螺旋线上,具有左、右放螺纹的特点,可分别与左、右旋螺纹配合。

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