板极

Based on the experience of national research projects, high chrome white cast iron liner、handfacing liner have been preparated.

在国内外制备耐磨衬板的经验基础上，分别选用一种铸造工艺制备高铬铸铁衬板，两种焊接工艺：躺极电渣堆焊、带极耐磨堆焊制备堆焊衬板。

There is a effect area of high voltage electrostatic field formed with a needle electrode connected with negative voltage and a stainless steel plate connected with ground.

在针电极和板极之间的距离一定的情况下，在一定的半径(以针尖正下方水面为圆心)以外，电场的影响非常微弱。

Maintain deflector if the size of the same voltage, the voltage change is accelerating, we can see a very accelerated voltage reduce, electron beam deflection angle instead of increasing, it is because of low accelerating voltage, the electron velocity smaller horizontal direction, electronic deflection plates in the field of the role of the extended time, the angle of deflection increases .

如果保持偏转板的电压大小不变，改变加速极的电压，可以看到加速极的电压减小，则电子束偏转的角度反而增大，这是因为加速极电压低，则电子的水平方向速度变小，电子在偏转板中受电场力作用的时间加长，所以偏转的角度增大。

When the plate was connected to the negative terminal there was no current .

如板极接到电池的负极，电流即不存在。

To cater for streamlined management of testpoints in your board designs, Altium Designer equips the PCB Editor with a _Testpoint Manager{_}.

为了满足板极设计中新型测试点的管理需求，Altium Designer在PCB编辑环境中配备了 _测试点管理器{_}。

Now adays, it's much harder to design the hardware system because of the increasing complexity and decline of the reliability.When there's something wrong with the system,the traditional self-repair technique based on board- reconfiguration is not helpful.

随着硬件系统的复杂性不断增加，系统设计日益繁琐、可靠性下降、通用性差，若系统出现故障，传统的基于板极重构技术的自修复方法已不适用。

Most conventional methods for the extraction of substrate network were based on the use of frequency behavior of Y22 + Y21. However, we found that the feedback signal through the internal circuit elements makes the conductance of the substrate network underestimated while makes the susceptance of the substrate network overestimated. If conventional methods are directly performed on large area SiGe HBTs, a negative effective substrate resistance will be extracted. In the first part of the thesis, a new extraction method for the substrate network parameters of SiGe HBTs is proposed. When extracting the substrate network parameters, the feedback signal through internal circuit elements is considered. All the circuit elements of substrate network are extracted from Ysub instead of Y22 + Y21. The extracted substrate network parameters show a different bias dependence as compared to the conventional methods. By using a simple n+-p junction, we successfully explained the extracted bias dependent substrate network parameters. We developed a series linear regression equation to extracted the intrinsic circuit elements from the ABCD parameters. Compared with the conventional methods which extracted the circuit elements from Y-parameters or Z-parameters, the proposed method is much simple and easy to implement in the computer programs.

传统方法在萃取基板网路参数时，常常由所量得的Y22 + Y21来著手，但我们的研究发现，利用Y22 + Y21的频率关系来萃取基板参数时，基板网路的电导会被低估而基板网路的电纳则会被高估，另外传统基板网路参数萃取方法在萃取大尺寸元件基板网路参数时会得到负值基板等效电阻，以上的非理想效应皆因忽略部份信号会经由本质参数对基板网路做回授的影响，因此本论文中提出一个新的基板网路参数萃取方法，在萃取基板网路参数时考虑了由本质参数所回授的信号，并且由Ysub而非Y22 + Y21萃取基板等效电阻、基板等效电容及基板与集极空乏电容，成功的解决上述的一些非理想效应，所得到的基板网路参数与集极偏压的关系与传统方法所得的趋势相异，经由一个简单的模型成功的解释了所萃取得到的基板网路参数与偏压的关系，在萃取本质参数时，我们舍弃传统萃取方法中常用的Y参数或Z参数萃取方程式，而改用ABCD参数，并提出一系列的线性回归方程式，萃取所有的本质参数，与传统方法比较起来，比较简单而且容易建立在使用者的参数萃取软体中。

When changing diaphragms in most drivers the new diaphragm may not be 100 % concentric to the old one, and the only way to align it in the magnetic gap is by removing the iron pole from the driver and loosening the screws holding the center pole piece, then and only then the diaphragm can be aligned with the center pole piece and rubbing or touching of the voice coil with the pole pieces in the gap is avoided, this may happen at certain frequencies only, producing a very harsh sound, even passing a static or a dc diaphragm test , therefore the claim that the diaphragms are replaceable in the field is not in many cases true, only when the driver has adjustable screw and dowel locating pin the alignment is possible without getting inside the driver and when alignment of the diaphragm is needed, the plate holding the pole pieces and assembly needs removal, by doing so the pole piece may be well set and aligned but the magnetic field will weaken significantly by such a procedure and solving one problem leads to another one, in this case the driver needs to be re magnetized in order to perform well.

当改变隔膜在大多数司机的新膜片不得100 ％同心旧的，只有这样，才能使其在磁场的差距是通过消除铁柱从司机和松动的螺丝中心柱举行一块，然后才是膈肌可配合中心极片和摩擦或触摸的音圈与极片的差距是可以避免的，可能会遇到这种情况只有在特定的频率，产生了非常严厉的声音，甚至通过一个静态或直流隔膜测试，因此声称隔膜的更换在外地不是在许多情况下，真实的，只有当该名司机已可调螺丝和销子定位销调整是有可能没有得到内部的驱动器和调整时，膈肌是必要的，举行的板极件和大会需要搬迁，这样做极可能是一块很好设置和调整，但磁场将削弱显着这样的程序和解决的一个问题导致另一次，在这种情况下，司机必须重新磁化，以表现良好。

When the two grid-electrodes are "floating", the unstability of plate electrode current is measured to indicate the random diffusion of electrons and ions and the existence of voltage noise.

观测了两栅极之间处于&悬浮&状态时板极电流的不稳定，反映了电子和离子扩散的随机性与噪声电压的影响。

Form board pole setting Fang Mu by the fact that superheavy basement roof form board props up system's to in the project bears the weight of the checking calculation being in progress strenuously , the form board construction scheme satisfies call for in reaching this project.

表板极设置方牧的是，超重地下室屋顶形式局道具系统的项目中承担的重量验算正在进展中发奋的形式局施工方案符合要求达成这一项目。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。