The basic composition,system principle, characteristics, dynamic performance and application of a electrical servo system with variable-structure and harmonic driving are introduced, and the electrical servo system with variable-structure and harmonic driving developed in recent years is described.%介绍了变结构谐波传动电动伺服系统的基本组成、系统原理、特点、动态特性及其应用,并介绍了近几年来研制的变结构谐波传动电动伺服系统。
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