When hydroturbine generator runs in steady state,oil film stiffness and damping(OFSD)can greatly affect the unit s vertical vibration.是什么意思_When hydroturbine generator runs in steady state,oil film stiffness and damping(OFSD)can greatly affect the unit s vertical vibration.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句