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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。
- ON ABERRATION THEORY OF THE COMBINED ELECTROMAGNETIC FOCUSSING CATHODE LENSES 关于电磁复合聚焦阴极透镜的象差理论
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- Have your glasses got plastic lenses? 你的眼镜是用塑胶镜片的吗?
- One that makes lenses and eyeglasses. 光学仪器制造技师光学透镜和眼镜的制造者
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
- electrostatic cathode lenses 静电阴极透镜
- cathode lenses 阴极透镜
- One that sells lenses, eyeglasses, and other optical instruments. 眼镜商，光学仪器商出售光学仪器、眼镜或其它光学仪器的人
- German physicist. He won a1905 Nobel Prize for his work on cathode rays. 勒纳，菲利普1862－1947德国物理学家。因在阴极射线方面的成果而荣获1905年诺贝尔奖
- High-quality wide angle lenses are very expensive. 高品质的广角镜头非常昂贵。
- Color cathode ray tube shielded band. 彩色显像管用带钢。
- Cameras have lenses at the front. 照相机的前面装有镜头。
- Some of these telescopes have glass lenses in them. 其中一些望远镜里安装着玻璃透镜。
- These sandstone bodies form elongate lenses. 这些砂岩体形成伸长的透镜体。
- An electron tubewith a photosensitive cathode. 光电管具有感光的阴极电子管。
- A cathode ray tube is shaped like a large bell. 阴极射线管的形状象个大铃铛。
- Buying Copper Cathode FOB Or CIF. 信息主题:美国求购铜。
- Wash the lenses in saline solution. 用盐溶液清洗镜片。
- A hollow cathode CW silver ion laser at 4788 ? 银离子空心阴极4788埃激光器
