cam
n.(名词)An eccentric or multiply curved wheel mounted on a rotating shaft, used to produce variable or reciprocating motion in another engaged or contacted part.凸轮:安装于旋转轴上的偏心轮或复合曲线轮,用以使相连的或相接触的其它部件产生多变的或往复的运动
来源:Dutch kam [cog, comb] * see gembh- 荷兰语 kam [轮齿,梳] *参见 gembh-