Surface roughness of transparency material is measured by means of light-cutting method and phase-contrast method.

运用光切法和相衬法对透明材料表面粗糙度进行测量。

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Surface roughness of transparency material is measured by means of light-cutting method and phase-contrast method.

运用光切法和相衬法对透明材料表面粗糙度进行测量。

youdao