对工艺尺寸进行分层处理 ,增加了计算机对处理复杂零件工序尺寸的能力 ,在此基础利用工艺尺寸式计算方法计算出全部的工序尺寸、最为经济合理的工序尺寸公差、平均余量及最小余量。在计算的同时我们还利用工艺尺寸链跟踪图向用户实时再现求解的全过程。由此实现用户操作的可交互性 The process of the size of stratification, an increase of computer processing complex parts of the ability to process size, based on the use of process size calculation method to calculate the entire process size, the most economical and reasonable process size tolerances, the average margin and minimum the amount. In the calculation of the same time, we also use the process of dimensional chain tracking map to the user to reproduce the whole process of real-time representation. As a result, user interaction is achieved