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- In this paper, the aberration theory for cathode lenses with combined electrostatic and magnetic focusing is discussed in detail. 本文运用变分原理研究了电磁复合聚焦阴极透镜的象差理论,导出了在任意象平面中象差系数的普遍公式。
- There is dependence between e/m error and accelerating voltage or focus voltage in the measurement of e/m by magnetic focusing method. 在利用磁聚焦法测量电子比荷的实验中;测量误差与示波管的加速电压和聚焦电压存在较大的相关性.
- periodic permanent magnetic focusing 周期永磁聚焦
- Periodic magnetic focusing system 周期永磁聚焦系统
- magnetic focusing indicator tube 磁聚焦指示管
- A new high power and wideband amplifier with permanent periodic magnet focusing 一种新的永久周期磁铁聚焦的高功率宽带放大器
- Dalian is a magnet for tourists. 大连是吸引游客的地方。
- 3D simulation of periodic cusped magnetic focusing sheet electron beam[J]. 引用该论文 王战亮;宫玉彬;魏彦玉;巩华荣;岳玲娜.
- This disco is a magnet for young people. 这家迪斯科舞厅经常吸引大批年轻的顾客。
- A magnet attracts both iron and steel. 磁铁吸铁也吸钢。
- Certain metals are attracted to a magnet. 某些金属会受磁石的吸引。
- A defect of vision prevented him from focusing accurately. 视力上的缺陷使他不能准确对焦。
- It shows the presence of a magnetic field. 这表明有磁场存在。
- North magnetic poles repel (each other). 磁北极与磁北极互相排斥。
- Having the same magnetic inclination or dip. 等磁倾的有相同的磁倾斜的
- Period permanent magnet focus system 周期永磁聚束系统
- We are currently focusing seriously on this matter. 我们正在严肃地处理这个问题。
- The block becomes magnetic when the current is switched on. 通电时线圈即具磁性。
- Human beings have learned out how to make magnet of cast iron. 人类已经学会如何从生铁制出磁铁。
- This film forgives errors in focusing. 这种胶片容许调焦误差。
