短語詞組短語oscillatory E motion 振蕩運動westbank oscillatory motion 振蕩運動angular oscillatory motion 角擺動viclent oscillatory motion 強烈振動violent oscillatory motion [力]大幅度振動oscillatory mode of motion 振動方式damped oscillatory mode of motion 阻尼振蕩運動 返回 oscillatory motion