短語詞組短語ion beam current density [核]離子束流密度Ion channel current 離子通道電流ion -current intensity 束流密度positive ion back current 整離子反向電流ion saturation current 離子飽和電流Ion cyclotron current drive 離子回旋電流驅動ion beam current [核]離子束流high ion beam current 強流離子束 返回 ion current