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4.概率法用于解尺寸链的反面问题用概率法解尺寸链的反面问题,就是运用公式(9)～(12a)及(12b)作逆运算,根据已知的封闭环公差和极限偏差来确定各组成环的公差和极限偏差。其中公式(9)的逆运算已在前面所讲的平均尺寸法中有详细叙述,此处不须重复。在求出各环公差带中心
4. PROBABILITY METHOD FOR SOLVING THE REVERSE PROBLEM OF SIZE CHAIN The solution of the inverse problem of the dimension chain by the probability method is to use the formulas (9) - (12a) and (12b) for the inverse operation. According to the known closed loop tolerance and limit deviation To determine the composition of the ring tolerance and limit deviation. Wherein the inverse of the formula (9) has been described in detail in the average size of the method described earlier, not repeated here. Find the center of each tolerance zone