Standard finish of gasket surface is 125-200 micro-inch maximum roughness.
垫圈表面的标准光洁度最大为125- 200百万分之一英寸粗糙度。
By this method, the function of the instrument is extended and can satisfy the requirement of the surface roughness national standard. The program flow chart is given.
从而，扩大了只用于测量单参数的表面粗糙度检查仪的使用功能，以满足表面粗糙度国家标准所规定的评定参数的要求。
The surface roughness obtained by this technology was approached to the Nation Standard of the Peoples Republic of China.
粗糙度测试结果表明 ，采用优化的工艺规范处理表面 ，粗化质量符合国家标准要求。
All of the casting dimension precision, surface roughness and material control have reached national standard.
铸件尺寸精度，表面精糙度及材质控制均达到国家标准要求。
In order to understand and use national standards of "Surface Roughness", this pa-per compares the new standard with the old one, summarizes their main differences.
前言：本文通过对《表面粗糙度》新、旧国标的对比，综述了新、旧标准间的不同之处，便于迅速了解和应用新标准。
In order to understand and use national standards of "Surface Roughness", this pa-per compares the new standard with the old one, summarizes their main differences.
前言：本文通过对《表面粗糙度》新、旧国标的对比，综述了新、旧标准间的不同之处，便于迅速了解和应用新标准。
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