ff cyclotronfixed frequency cyclotron固定频率: fixed-frequency回旋加速器: cyclotron回旋加速器频率: cyclotron frequcncy固定频率加速器: fixed frequency accelerator回旋加速器: circular accelerator; cyc cyclotron; cyclotorn; cyclotron unit; cyclotrons; editcyclotron; magnetic resonance acceleator; rotary accelerator下载手机词典可随时随地查词查翻译