double focusing magnet的意思|示意

美 / / 英 / /

双聚焦磁铁

weak-focusing magnet 弱聚焦磁铁
stepped focusing magnet 阶梯式聚焦磁铁
strong focusing lens 强聚焦透镜
quadrupole focusing lens 四极调焦透镜，四极聚焦透镜
macro-focusing lens macro-focusing镜头
focusing quadrupole magnet 聚焦四极磁铁
permanent-magnet focusing 永磁聚焦
permanent-magnet focusing TWT 永磁聚焦行波管（permanent-magnet focusing traveling-wave tube）
periodic permanent magnet focusing 周期性永磁聚焦
focusing g magnet 聚焦磁铁