Magnetic coils focus the electron beams into fine spots.
磁线圈将电子束聚焦成细小的点。
Influence of focus electrode bias, focus hole size and grid electrode bias on the emission electron beams was discussed.
分别讨论了聚焦极电位、聚焦极孔径以及栅极电位对发射电子束的影响。
Reduction of the focus hole diameter strongly affects the electrons with large emission angle but its influence on electron focusing is less markedly than the influence of the variations in potential.
减小聚焦极孔径对大发散角的电子有影响，但对聚焦作用的影响不如改变电位明显。
We mainly focus on the industry of precision electron, photoelectric chips, medicine and chemistry, food, cosmetics, dairy, battery manufacture, aerospace, and solar energy.
惠瑞公司主要服务于精密电子、光电芯片、医药化工、食品、化妆品、乳制品、电池制造、航天航空、太阳能等行业。
The optics-electron industry is a leading industry, which is the focus of high-new technology and its industry in the world in the21st century.
光电子产业是新世纪信息经济的主导产业，光电子技术及其产业是各国高新技术竞争的焦点。
This work focus on the calculation of the cross-section of the electron-hydrogen like Uranium collision. The interference effect of DR and RR was investigated near the resonant energy.
本工作计算了电子与类氢的铀离子碰撞截面随能量的变化，研究了在共振能量附近，DR和RR过程的干涉。
This work focus on the calculation of the cross-section of the electron-hydrogen like Uranium collision. The interference effect of DR and RR was investigated near the resonant energy.
本工作计算了电子与类氢的铀离子碰撞截面随能量的变化，研究了在共振能量附近，DR和RR过程的干涉。
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