Draft Document - Rotating machinery - Test methods and apparatus for the measurement of the operational characteristics of brushes (IEC 2/1967/CDV:2019); German and English version prEN IEC 60773:2019
文件草案——旋转机械——电刷工作特性测量用试验方法和装置(IEC 2/1967/CDV:2019);德文和英文版本prEN IEC 60773:2019