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生产中,我们经常碰到这样的问题,即如何测量易变形或已变形圆零件的原来直径。例如:密封系统中常用的“O”形橡胶圈直径D(见图1所示)。
In production, we often run into the question of how to measure the original diameter of an easily deformed or deformed circular part. For example: seal system commonly used “O” shaped rubber ring diameter D (see Figure 1).