回动轴 [机] reverse shaft ; reversing shaft
回动装置 reversing gear ; [机] reverse gear ; reversing drive
回动杆 reversing lever ; [铁路] reverse rod ; reversing link ; reverse link
回动阀 reversing valve ; [机] reverse valve
回动螺旋 reversing screw
回动弹簧 [机] return spring ; backspring
回动凸轮 resetting cam ; returncam
回动离合器 reversing clutch
回动鼓轮 reversing drum
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