短語詞組短語betatron -oscillation frequency 貝他加速器振蕩頻率frequency betatron oscillation 電子加速器振動(dòng)頻率forced betatron oscillation 受迫自由振蕩forced d betatron oscillation 受迫自由振蕩non -linear betatron oscillation 非線性betatron振蕩 返回 betatron oscillation