generator rotor短语¹³¹⁶²⁰⁺³ 基本例句 发电机转子 This paper studies the methods of torsional vibration natural frequencies test of steam turbine generator rotor system, and introduces the excitation methods and some key techniques in the field test. 研究了汽轮发电机组轴系扭振固有频率的现场测试，着重分析了激振方法和有关测试技术要点。 cnki