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“三面互研可获理想平面”,这是人们早已熟知的。问题在于,在现代已掌握多种先进加工技术和测试技术的情况下,对这种传统的工艺方法,怎样重作评价?它还有多大实用价值?怎样才能减轻操作中笨重的体力劳动?这些就是本文准备讨论的。一、两种不同的含义对刮制的平板,三面互研的“研”是指刮研。就是说,三块同尺寸的平板涂色后相互交替拖研,按所显示的接触斑点进行刮削,直到三
It is already well-known in the world that “three-dimensional research can achieve the ideal plane.” The question is how to reassess this traditional process, how valuable are its practical value, and how to reduce cumbersome manual labor during the operation, given that modern times have mastered many advanced processing techniques and testing techniques? This article is ready to discuss. One, two different meanings Scratch the flat panel, three research “research” refers to scratch research. That is to say, after the three same size plates are colored, they are alternately dragged and scratched according to the displayed contact spots until three