Draft Document - Rotating electrical machines - Part 31: Selection of energy-efficient motors including variable speed applications - Application guide (IEC 2/1932/CD:2018); Text in German and English
文件草案-旋转电机-第31部分:节能电机的选择 包括变速应用-应用指南(IEC 2/1932/CD:2018);德语和英语文本