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。
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