主要元件

There are two parts in this thesis. Part I focuses on the transient effect in InGaP/GaAs hetero-junction bipolar transistors. Part II focuses on the P memory effect and buffer-layer-quality determination using C-V measurement in AlGaAs/GaAs pseudomorphic high-electron-mobility transistors. The characterization of hydrogen passivation for InGaP HBTs grown on semi-insulating GaAs substrates is studied. The transient effect caused by hydrogen passivation results the current gain ?

本论文分两部分，第一部份讨论在磷化铟镓的异质接面双载子电晶体中，由於氢的包覆效应产生的特性之研究，由於氢在此种元件中所造成的载子包覆现象是引起电流增益增加的暂态现象的主要原因，本论文提出一个计算氢包覆比例的模型，并与SIMS量测的结果相比对，经过几次热回火处理，此种暂态效应可以被消除。

The study of pentacene based organic thin film transistors has been a major area of research on organic semiconducting materials and devices.

在有机半导体材料和元件的领域中，以有机薄膜电晶体的研究为主要的范畴。

First of all, design goal and design basis Serviceability And so on The key point is the work survey and the performance parameter design calculation and designs the request and how to choose the major components according to the parameters If the hydraulic cylinder, sells the axis and so Secondly, the article presents the working principle of every part in the design how the bucket, the arm and the boom斗Throwout lever respectively works.

首先介绍平整装置设计目的和设计依据，适用性等。重点是工作概况及性能参数的设计计算和设计要求，并根据性能参数来选择主要的工作元件如液压缸，销轴等。接着介绍各个工作装置的工作原理，铲斗、动臂、斗杆、推杆、的工作情况。

In this paper, the structured and unstructured uncertainties are of primary interest, i.e., the modeling error due to the parameters variation and unmodeled modes, especially the friction and sensor dynamics, neglected time delays, etc.

在这篇论文中，构造好的和未构造好的不确定因素是主要的兴趣所在，也就是说模型的误差导致参数变化和未模型化的模式，尤其是摩擦力和敏感元件的力度，被忽视的时间延迟等等。

ABSTRACT Power electronics devices are developed rapidly. There are some factors which influence the protective properties of the devices, including such as electrical characteristics of protection materials, the interface conditions of protective materials-pn junction, the surface effective charge density, the polarizable or unpolarizable properties of organic protective materials, etc.

电力半导体器件是近期发展起来的一类功率电子器件，其表面保护与其它电气元件不同，一方面要考虑器件表面绝缘保护材料的电性能和含杂等因素；另一方面，器件的表面钝化保护材料与器件接触后，器件的界面情况、材料与器件接触带电情况、以及材料所含官能团的极性等情况，也是影响器件性能的主要因素。

A new method of a centrifugal compressor with a hub airfoil-vane diffuser was proposed and applied based on the investigation of a centrifugal compressor with vaneless diffuser.

0前言扩压器是离心式压缩机一个级的重要组成元件之一，主要分为有叶扩压器和无叶扩压器两种。

The NSP Power model the NTC thermistor is a kind of semiconductor ceramic element that mostly made from transition metal OXID material, and belongs to negative temperature themistors. It has a rated resistance.

NSP功率型NTC热敏电阻器是以过渡金属氧化物为主要原料制造的半导体陶瓷元件，属於负温度系数热敏电阻器范畴，功率型NTC热敏电阻器有一个额定的零功率电阻值

The NSP Power model the NTC thermistor is a kind of semiconductor ceramic element that mostly made from transition metal OXID material, and belongs to negative temperature themistors. It has a rated resistance.

NTC热敏电阻器是以过渡金属氧化物为主要原料制造的半导体陶瓷元件，属于负温度系数热敏电阻器范畴，功率型NTC热敏电阻器有一个额定的零功率电阻值

Optics damage is mainly caused by the nonlinear effect of high laser, the damage of large optics includes the surface damage dots, interior focalized filaments, dust, scratches and so on.

光学元件损伤是主要由于强激光的非线性效应而导致，损伤包括表面损伤点、内聚焦丝，灰尘和划痕等。

This article analyzes the working theory and the working forces of the drive wheel, pyramid wheel and outer ring during the transmission process. It also deduces the practical calculation formula of the pyramid wheel type variable speed drives, it also goes on the material calculation aim at the selection parameter. It protracts the assemble-drawing of the pyramid wheel type variable speed drives and the accessory-drawing of the mostly drive component. So it can express more clearly of the structure and process planning of the variable speed drives.

本文分析了在传动过程中变速器的主动轮、菱锥、和外环的工作原理和受力关系；详细推导了实用的菱锥锥轮式无级变速器设计的计算公式；并针对设计所选择的参数进行了具体的设计计算；绘制了所计算的菱锥锥轮式无级变速器的装配图和主要传动元件的零件图，将此变速器的结构和工艺等方面的要求表达得更为清楚。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了