查询词典 electron

The theory is that electron launched by electron gun is inducted into discharge chamber with screen voltage attracting, gas will be charged by inputting RF power. Ion can be attracted by screen and accerlate voltage.

射频宽束离子源工作原理是利用电子发生器产生电子，在屏极电压作用下把电子引入离化室，利用射频感应原理将能量耦合到离化室，再利用气体放电原理产生等离子体，在屏极和加速极的作用下引出离子束。

A circle is placed at the launch point to improve the interaction between the electron beam and the fields supported by the slow wave structure, thus to control the beam current density at the launch point, and to minimize the loss of the electron beam energy. The inaner radii of the extractor vanes are slightly larger than those of other SWS vanes, which increases the axial group velocity and enhances the microwave output power and efficiency. Implementation of two RF choke vanes stops the leakage of microwave pulse power toward the diode, and makes the device more compact than the conventional MILO.

该振荡器在阴极电子发射起点加圆环，控制此处电子束的发射密度，来减少电子能量的损耗，改善束－波互作用；逐渐加大慢波结构的后两个叶片的内半径，增大微波群速度，便于谐振腔中的能量输出，提高微波输出效率；采用两个扼流片有效地阻止了微波功率向二极管区泄漏，相应减小了器件的尺寸。

In high perveance klystrons, violent variation of electron beam radius and electron transverse velocity is met with, and the energy exchange between kinetic electrons and gap field is a nonlinear process.

在高导流系数的速调管中电子束径及横向速度都会发生显著变化，运动电子与间隙电场之间的能量交换是非线性的互作用过程。

L〓 can accept the electron from the active PS Ⅱ center completely, and that DCBQ can only accept a part of the electron from the inactive PS Ⅱ center (40%) even at the concentration 120μ mol.

但DCBQ的浓度在比Cao等几乎高出一个数量级（120μmol.L〓）的情况下，也只接受部分无活性PS Ⅱ中心的电子（40％）。

Their morphologies were characterized with scanning electron microscopy, transmission electron m...

通过扫描电子显微镜、透射电子显微镜的观察，以及对产物的拉曼光谱分析发现，用本方法制备得到的碳纳米管形态良好，石墨化程度高。

Field emission scanning electron microscopy shows the diameter of Bi2Sr2CaCu2Oy nanowires is nearly 20 nm and the length is up to 1 μm. High-resolution transmission electron microscopy also shows the configuration of the polycrystalline nanowires with average diameters of 20nm.

利用场发射扫描式电子显微镜及高解析度穿透式电子显微镜来观察奈米线的外观及结构，奈米线的粗细约为20奈米，长度约为1微米，为多晶结构。

Methods MSCs were cultured with inbred line small-ear cancellous bone of Ban Na pigs . A 1.5 centimeter segmental defect was created in the mid-upper part of the radial shaft of adult rabbit. The defects were implanted into composited xenogeneic bone in experimental group and xenogeneic bone alone in control group , the defects were not filled with anything in blank group . The repair capability of the defects was assessed by scan electron microscope before operation and physical , histology, X-ray , transmission electron microscope, SPECT and bone mineral density examinations 4 , 8 and 12 weeks after operation .

将MSCs与版纳近交系小耳猪松质骨在体外联合培养，兔桡骨中上段制成1.5cm的骨—骨膜缺损模型，实验组植入复合异种骨，对照组植入单纯异种骨，空白对照组不植入任何材料，分别于术前行标本的扫描电镜观察和术后4周，8周，12周各时间点行标本的大体观察，组织学观察，X线片观察，透射电镜观察，SPECT扫描及骨密度测试，比较其骨缺损区骨修复愈合情况。

In the case of N=6 although the electron migration resembled the case of N=4, the electron localization was diminished.

在N=4的图中，因外层电子向两边接枝处转移，造成氮化硼纳米管中央电子密度明显减少。

When N=6, the electron transfer was similar to the case of N = 4, but inner layer electronic local was weakened so that parts of electrons in S layer was excited into P electrons, increasing axial electron mobility, meanwhile more performances of sp2 hybrid orbital formation were completed.

在N=6的图中，电子转移情况类似N=4的情况，但内层电子局域性有所减弱，导致部分s电子被激发成p电子，增大轴向电子流动性，同时可表现更多的sp2杂化轨道的形成。

In the three SBR reactors,the phenomenons of denitrifying dephosphatation with NO3——N and NO2——N as electron acceptors and the traditional biological phosphorus accumulation with O2 as electron acceptor were investigated respectively.

在3个SBR反应器中，分别考察了以NO3--N和NO2--N为电子受体的反硝化除磷现象，以及传统以O2为电子受体的生物聚磷现象。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。