英语释义

1. an electron belonging to a beam of secondary radiation or emission (as an electron emitted from a metal surface when the surface is bombarded by high speed electrons)

片语

secondary-electron multibend次级电子倍增

secondary-electron multiplication次级电子倍增

secondary d electron次级电子

secondary impact electron二次碰撞电子

counter secondary-electron二次电子计数器

secondary-electron emission current二次电子发射电流

secondary-electron counter次级电子计数器

secondary emission electron二次发射电子

secondary electron emission[电子]

英汉例句

• a two electron gun method and an arrangement whereby the secondary electron emission yield of dielectric materials can be measured are introduced.

  本文介绍测量绝缘介质二次电子发射系数的双枪方法，并在动态系统中进行测量。

• based on the imaging principle of sem, the equation for illustrating the theoretical resolution of secondary electron image has been deduced in this paper.

  本文是从扫描电子显微镜的成像原理出发，推导了有关阐明二次电子像理论分辨率的公式。

• the energy distribution formula of secondary electron of mcp is derived.

  给出了mcp中次级电子能量分布表达式。

• in this paper the sample preparation techniques of radiolarite were discussed in order to get high quality secondary electron images in sem.

  讨论了为获得放射虫化石的高质量的二次电子图像所采用的试样制备方法。

• there is a gaseous secondary electron detector (gsed) in the chamber in esem' which offers new functions.

  esem是在传统的sem样品室中多一个gsed探头，因此，它在传统的sem基础上增添了新的功能。

• the relation between the interaction efficiency and some parameters is investigated in the case of the interaction of fundamental wave with secondary electron harmonic.

  在此基础上，对复合腔回旋管进行了大信号分析，计算了基波与二次电子回旋谐波情况下电子效率与一些参数的关系。

• the qualification of multipactor and the characteristic of the angle and velocity of secondary electron were study.

  研究了次级电子倍增条件以及次级电子出射角度和出射速度概率密度分布的特点。

• the multi-stage vacuum system and gaseous secondary electron detector(gsed) for environmental scanning electron microscope(esem) were simply introduced and the basic principle of esem was discussed.

  本文简单介绍了构成环境扫描电镜（esem）的多级真空系统和气体二次电子探测器，描述了esem的基本工作原理。

• there are two kinds of theory for the vacuum surface flashover: secondary electron emission avalanche (seea) and electron triggered polarization relaxation (etpr).

  研究真空表面闪络过程有两类理论：二次电子发射崩溃（seea）和电子引发极化松弛（etpr）。

• these photoelectrons are multiplied by secondary electron emission through the dynodes and then collected by the anode as an output pulse.

  这些光电子通过倍增器电极时由于次级电子发射而倍增，然后被阳极收集成为一个输出脉沖。

• in the process of field emission, the secondary electron emission is inevitable.

  场致发射过程中，二次电子发射现象不可忽视。

• simulation calculation indicates that secondary electron can be controlled well by electrostatic field combined with faraday cylinder.

  模拟计算表明，在法拉第圆筒的基础上加上电场抑制，能很好地抑制二次电子流的产生。

• the relation between target signal current and deflecting rate of the secondary electron conduction target vidicon(sectv)which has accumulating effect is presented.

  给出了具有积累特性的sec摄像管靶极信号电流与读出扫描速率的关系。

• the paper reports the fabrication of the mcp based on the porous glass (ceramics) and the measurement of secondary electron emission characteristic of the mcp.

  本文报告了以多孔玻璃为基材的微通道板的制备及其二次电子发射特性的测量结果。

• apparatus is described for maintaining neutralization based upon a reduction of electron losses, plasma bridge connections and secondary electron production.

  描述了用于基于减少电 子丢失、等离子体桥接和二次电子产生的来保持中和状态的设备。

• secondary electron can affect the production of neutron very much.

  由于中子管中次级电子的存在，中子产额明显降低。

• based on the formula of secondary electron yield, the optimal inclined angles for mcp have ho calculated according to the different energy of primary electrons.

  本文根据铅硅玻璃次级电子产额公式，计算了对应于不同入射能量的原初电子进入微通道板的最佳入射倾斜角。

• the trapping & detrapping mechanism of trap carriers would play the important role during the developing process of flashover, together with the secondary electron emission mechanism.

  陷阱的电荷捕获\释放机制在闪络发展过程中起着重要的作用，它与二次电子发射机制一起共同作用于真空中介质的沿面闪络发展过程中。

• the influence of secondary electron emission on efficiency and backflow can be improved through an elaborate electron optics design.

  在研究二次电子特性及成像机理的基础上，设计了二次电子成像系统。

• a large-size secondary electron emission detector used in a magnetic mirror device for measuring automatically and simultaneously neutral and ion injection beams is described.

  本文介绍了在磁镜装置上应用的同时自动测量注入中性束和离子束的大型二次电子发射探测器；

• with a low electron temperature, secondary electron emission coefficient is small than 1, the sheath has the characteristics of one-dimension dynamic sheath.

  其次，通过模拟本文发现了电子温度对鞘层的二维动态特性的影响规律。

• to measure secondary electron emission characteristics of space materials, space research institutions have done some research and developed several generations of test system.

  为了测量空间材料二次电子发射特性，航天科研机构已进行了相关的研究，研制出了几代测试装置。

• this paper derived the formulation for the real efficient emission coefficient of secondary electron under the condition that high energy primary electron incident on metal obliquely.

  推导出高能原电子斜入射时的金属的有效真二次电子发射系数的表达式，它与入射角的余弦近似成反比。

• the secondary electron emission from the dielectric layer makes the discharge current increase.

  绝缘介质层的二次电子发射，使放电电流增大。

• it is concluded that the surface charge characteristic under nanosecond pulse is influenced by the charge injection, the secondary electron emission and the collision ionization and so on.

  研究认为：脉沖作用下表面电荷积累受电荷注入、二次电子发射及碰撞电离等多种因素影响。

• based on the study of secondary electron image characteristics and mechanisms, a secondary electron image system is designed in the text.

  在研究二次电子特性及成像机理的基础上，设计了二次电子成像系统。

• in this paper, the relationships of effects induced by different angles of incidence of charged particles on the secondary electron emission, which are based on experimental data, are applied.

  本文采用由实验得到的带电粒子入射角度对次级电子的影响关系，根据轨道限制电流收集理论，导出了不同几何形体航天器的次级电子数通量表达式；