Forawedgeclampshowninfollowingfigure，and′areclampingmembers.Fricitoncoefficientamongwedge，clampandclampingmembers，′isf.Determinetheselflockdiscriminantforthisclamp.评分规则见课堂讲解作业第四章机械的效率与自锁第四章机械的效率与自锁