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- In this paper, the aberration theory for cathode lenses with combined electrostatic and magnetic focusing is discussed in detail. 本文運用變分原理研究了電磁復合聚焦陰極透鏡的象差理論,導出了在任意象平面中象差系數的普遍公式。
- There is dependence between e/m error and accelerating voltage or focus voltage in the measurement of e/m by magnetic focusing method. 在利用磁聚焦法測量電子比荷的實(shí)驗中;測量誤差與示波管的加速電壓和聚焦電壓存在較大的相關(guān)性.
- periodic permanent magnetic focusing 周期永磁聚焦
- Periodic magnetic focusing system 周期永磁聚焦系統
- magnetic focusing indicator tube 磁聚焦指示管
- A new high power and wideband amplifier with permanent periodic magnet focusing 一種新的永久周期磁鐵聚焦的高功率寬帶放大器
- Dalian is a magnet for tourists. 大連是吸引游客的地方。
- 3D simulation of periodic cusped magnetic focusing sheet electron beam[J]. 引用該論文 王戰亮;宮玉彬;魏彥玉;鞏華榮;岳玲娜.
- This disco is a magnet for young people. 這家迪斯科舞廳經(jīng)常吸引大批年輕的顧客。
- A magnet attracts both iron and steel. 磁鐵吸鐵也吸鋼。
- Certain metals are attracted to a magnet. 某些金屬會(huì )受磁石的吸引。
- A defect of vision prevented him from focusing accurately. 視力上的缺陷使他不能準確對焦。
- It shows the presence of a magnetic field. 這表明有磁場(chǎng)存在。
- North magnetic poles repel (each other). 磁北極與磁北極互相排斥。
- Having the same magnetic inclination or dip. 等磁傾的有相同的磁傾斜的
- Period permanent magnet focus system 周期永磁聚束系統
- We are currently focusing seriously on this matter. 我們正在嚴肅地處理這個(gè)問(wèn)題。
- The block becomes magnetic when the current is switched on. 通電時(shí)線(xiàn)圈即具磁性。
- Human beings have learned out how to make magnet of cast iron. 人類(lèi)已經(jīng)學(xué)會(huì )如何從生鐵制出磁鐵。
- This film forgives errors in focusing. 這種膠片容許調焦誤差。
