本文就某台两部中波大功率广播发射机在调机和日常维护中出现的8种主要寄生振荡及其处理方法作了系统的论述。文中还从理论上对寄生振荡的产生原因和消除原则作了概述.本文对中波广播发射机的调机和维护工作有一定参考意义。 This article systematically discusses eight main parasitic oscillations and their processing methods that appear in the dispatcher and routine maintenance of a certain two Chinese medium-wave high-power broadcast transmitters. The article also gives an overview of the causes and elimination principles of parasitic oscillation theoretically.This paper is of some reference significance to the construction and maintenance of medium wave radio transmitter.