Surface roughness measurement has always been an important research subject in many engineering fields.

在许多工程领域中，表面粗糙度测量一直是一个重要的研究课题。

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Surface roughness measurement has always been an important research subject in many engineering fields.

在许多工程领域中，表面粗糙度测量一直是一个重要的研究课题。

youdao