secondary emission

1. Eighty percent protection was afforded with one dose of vaccine and 90 percent with 2 doses. secondary emission
   一次注射疫苗提供80%保护，两次注射则达90%。ph.1.【电】二次发射，次级发射
2. Characteristic of plasma sheath in the presence of secondary electron emission and negative ions
   二次电子发射和负离子存在时的鞘层结构特性
3. 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。
4. Measurement of Secondary Neutron Emission Double-Differential Cross Section for Natural Iron Induced by 8.17 MeV Neutron
   8.17MeV中子与天然铁作用的次级中子双微分截面测量
5. Study on Secondary Electron Emission Performance of B-doped Diamond Films
   掺硼金刚石薄膜二次电子发射特性的研究
6. Influence of structural parameters upon two-dimensional flow field in the ejector secondary emission
   结构参数对喷射器内二维流场的影响ph.1.【电】二次发射，次级发射
7. A metal-oxide secondary emission film can be deposited on glass, ceramic or semiconductor substrates by thermal decomposition of an organo-metal alkoxide.
   利用某些有机烷氧基金属化合物的热分解，可在玻璃、金属、陶瓷或半导体基片上沉积相应的金属氧化物次级发射膜。
8. Multiplication effect of the secondary emission microwave electron gun
   二次发射微波电子枪的倍增特性
9. The experimental results show that adding rare earth oxide into molybdenum can improve the secondary emission coefficient of the emitter.
   实验结果表明，在钼中添加稀土氧化物可以提高发射体的次级发射性能。
10. The paper summarized the development of the theory about the secondary emission.
    本文简述了次级发射的理论研究。
11. Advances in studies and applications on the secondary emission
    次级发射相关研究及应用的发展与现状
12. The results show that the secondary emission coefficients of the materials sintered by SPS can reach 3.84 more than those of the materials sintered by traditional method ( 2.92).
    测试结果表明用SPS烧结方法制备的稀土-钼阴极材料的次级发射系数达到3.84，比常规烧结方法制备的阴极材料的次级发射系数（2.92）大很多。
13. The theory mainly includes the studies about the relatively factors influencing the secondary emission and the studies about the secondary emission under the ion bombardment and the studies about the relationship between the secondary emission properties and the cover rate of oxygen on the metal surface.
    次级发射理论在于研究影响次级发射的相关因素及对离子轰击下的次级发射现象的研究，以及对氧在金属表面的覆盖率与二次电子发射性能的关系的研究。
14. The empirical formula in the process of the secondary emission is analyzed; the stabilization condition of vacuum surface flashover is deduced. The physics image of the vacuum surface flashover is described with the SEEA theory.
    本文分析了二次电子发射过程的经验公式，推导了真空表面闪络的稳定条件，以SEEA理论的观点描述了真空表面闪络发生的物理图象。
15. Numerical Algorithm of Secondary Emission Microwave Electron Gun
    二次发射微波电子枪的数值计算方法
16. This paper describes interation between electron beam and IC, secondary emission mechanism and the measuring principle of voltage contrast.
    本项工作首先叙述电子束与集成电路的相互作用，二次放射机理和电压衬度的测量原理。
17. In the present method, Al2O3: Mo secondary emission film has been made from thermal decomposition of home-made Aluminium ethoxide and Molybdenum pentachloride.
    本工作由自制乙氧基铝和五氯化钼，在玻璃基底上热解沉积制得合适电阻率的次级发射膜Al2O3∶Mo（？）
18. Simulation and analysis of secondary emission microwave electron gun
    二次发射微波电子枪的模拟计算及其特性分析
19. Secondary Emission Property and Microstructure Analysis on Molybdenum Cathode Doped with Rare Earth Oxides Made by Spark Plasma Sintering
    放电等离子体烧结复合稀土钼阴极的次级发射性能及组织的研究
20. The secondary emission may induce charge accumulation, change electric field distribution and produce ions which may cause the damage to the cathode through ion bombardment.
    二次电子发射引起电荷积累，改变电场分布，二次电子再与空间电荷碰撞激发离子，引起离子轰击，这些将对场致发射造成极大影响。
21. A scanning low energy electron probe for measuring the secondary emission of THERMIONIC CATHODES
    测量热阴极次级发射特性的扫描电子探针法
22. MgO material coated in microchannel plate input channel with suitable dept high secondary emission coefficient, can reduce obviously noise factor.
    研究表明，在微通道极输入端通道内蒸镀适当深度的高二次发射系数的氧化镁材料，能显著地降低噪声因子。
23. Direct Electrochemical Preparation of Titanium Ethoxide FABRICATION OF SECONDARY EMISSION FILM BY PYROLYZATION OF ALUMINIUM ETHOXIDE
    热解乙氧基铝制备次级电子发射膜
24. However, when the temperature is higher than 1 600 ℃, the grain size of the cathode increases quickly with decrease of the secondary emission coefficients of the cathode.
    但SPS烧结温度高于1600℃，晶粒将急剧长大，二次发射系数也显著下降。
25. Though, using Passive Secondary Emission technology can enhance the induction magnetic field effectively, and the intensity of magenetic field can be controlled easily according to the requirement.
    但采用无源二次发射技术可以有效地提高感应磁场，并可以根据需要很方便地调整磁场强弱。
26. The three methods mentioned above were used to calculate the external Q of secondary emission microwave electron gun.
    用这3种方法分别计算了二次发射微波电子枪的外部Q值并和实验测量结果做了比较。
27. The maximum secondary emission coefficient of carbon coated Mo or Hf is about 0.7;
    钼、铪上复碳后次级发射系数降为δ（max）（？）0.7；
28. Some secondary emission properties of w-y_2o_3 cermet cathode
    W-Y2O3金属陶瓷阴极的二次发射
29. At the same time, this paper also calculated the VUV luminous efficiency beyond different parameters such as voltage 、 distance of the electrode 、 pressure 、 secondary emission etc.
    同时，本文也计算了各种不同参量（电压、极间距、气压、二次电子发射系数等）条件下的PDP显示单元的真空紫外光的发光效率，分析了紫外光效随着这些参数变化的原因；

noun

1. the emission of electrons from a surface that is bombarded by higher energy primary electrons