光学功能薄膜 表面硬化薄膜 硬化层厚度测定方法
Optical functional films—Superficial hardening film—Determination of thickness of hardening coating

2016-10-13

钢件薄表面总硬化层深度或有效硬化层深度的测定
Determination of total or effective thickness of thin surface hardened layers of steel parts

2005-07-21