音标：[ˈrætʃit ˈskru:ˌdraɪvə] ；

棘轮旋凿

词型变化：名词复数形式 : ratchet screwdrivers

【近义词】

spiral ratchet screwdriver螺旋槽棘轮旋凿...

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arcuate ligament of pubis