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。
Individual cases should take surface mold accurate measurement to the bone mass.
个别病例应取面模，准确测量颧骨需要削除的骨量。
Absolute measurement and foundation of standard optical surface.
标准光学面形的建立与绝对检验。
Absolute measurement and foundation of standard optical surface.
标准光学面形的建立与绝对检验。
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