表面粗糙度新旧标准差异及其贯彻使用的探讨

Difference of new and old surface roughness standard and discussion of their employment

从理解、应用的角度出发,阐述了表面粗糙度国家标准的演变,各版本之间的主要区别,以及应用时应注意的问题;着重论述了表面粗糙度新标准的表示方法以及在图样中的应用。

In view of understanding and application,evolution of national surface roughness standard,major difference between various editions as well as the matter need to pay attention were elaborated,as well as expression of new surface roughness standard and its application in drawings were expounded pointedly.