标准摘要
[中文适用范围]： 给出的符号和术语按主题排序，并细分为以下部分：几何学、运动学、动力学、损耗和传热、电磁量、数字和比率、建议与电机一起使用的下标 [外文原描述]： Contains letter symbols for quantities related to rotating electrical machines. Concerns dimensional characteristics as well as performance under different operating conditions.
英文名称Letter symbols to be used in electrical technology. Part 4: Symbols for quantities to be used for rotating electrical machines