便携式阀门研磨机的研究华北电力学院韩志仁，刘立生，吕国华１前言电力是工农业生产及日常生活所必须的能源，其重要性不言而喻。电厂是电力生产行业最基本的单位，它的正常运行对于保证正常供电至关重要。因此，电厂机组需定期进行大修，以保证安全运行，平时的临时性维... Portable Valve Grinder North China Electric Power University Han Zhiren, Liu Lisheng, Lv Guohua 1 Introduction Electricity is an essential energy for industrial and agricultural production and daily life, its importance is self-evident. Power plant is the most basic unit of power production industry, its normal operation is essential to ensure the normal power supply. Therefore, power plant units need regular overhaul to ensure safe operation, the usual temporary dimension ...