“键槽”用英语怎么说？

键槽的生成是用了0.63最小圆狐的尺寸条件.Was the keyway created using a min arc condition dimension of .0.63?差于无键槽的印版滚筒,螺丝一不退给拧紧.For non - key way of plate cylinder screws must be tightened up.本插床可插各种大、中型零件内外平面、型面和键槽等粗精加工.This slotting mac...