振转跃迁
Vib-rotational transition
粒子-转子模型
particle-rotor model
particles plus rotor model
particle rotor model
rotor plus particle model
particles rotor model
柔性转子振动控制系统
flexible rotor vibration control system
中子转子选速器
chopper-type neutron velocity selector
转子振荡
rotor rotation oscillation