短語詞組短語vibration drag reduction 振動減阻vibration n reduction 減振vibration -reduction design 減振設(shè)計precision vibration -reduction 精密減振VIBRATION NOISE REDUCTION 優(yōu)點減震降噪vibration E reduction 減振noise and vibration reduction 減振降噪vibration reduction by interference 乾擾降震vibration reduction method 減震方法 返回 vibration reduction