对理论正确尺寸应用的分析与探讨

Analyse and Discuss about the Applying of Theoretically Exact Dimensions

通过对某些特征项目的被测要素的理想形状、理想方向和理想位置的确定分析,认为对于某些理论正确尺寸的表示,应用规定的代号表示,这样更有助于国家标准的规范化、统一化,在使用上能更简捷方便。

In the indication of tolerances of form and position, theoretically exact dimensions is the dimensions to decide ideal form、 ideal orientation and ideal position of measured element of some feature items. About the sign of theoretically exact dimensions, it is proper to show with fixed symbol and not to explain with text.