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介绍了采用谐波齿轮减速器，光电开关行程控制和过流限扭控制的阀门电动装置。阐述了其结构特点、控制原理及应用前景。
Introduced the use of harmonic gear reducer, photoelectric switch stroke control and over-current limit valve control valve electric device. The structure, control principle and application prospect are expounded.