【单选题】直线尺寸链采用概率法求解时,若各组成环均接近正态分布,则封闭环的公差等于: 。When the linear dimension chain is solved by probability method, if the component links are close to normal distribution, the tolerance of the resultant link...
A.
各组成环中公差的最大值 The maximum tolerance among the component links
B.
各组成环中公差的最小值 The minimum tolerance among the component links
C.
各组成环公差之和 The sum of tolerances of all component links
D.
各组成环公差的平方和的平方根 The square root of the sum of squares of the constituent links' tolerances