短语词组短語Electron Beam Ion Trap 電子束離子阱;電子柬離子阱beam penning trap 潘甯阱Compact Electron Beam Ions Trap 緊湊型電子束離子阱single laser beam trap 激光勢阱beam trap detail 電子束陷阱ar hollow beam trap 氬離子中空光束囚禁trap beam 射柱陷阱 返回 beam trap