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Xamples of specific articles are a grid, a filter, a graticule, a mesh, a light chopper disc, a heat sink plate, a heater element, a screen, colour TV mask, a diaphragm, a shim, a gasket, a washer, a spring, a cog, a link, a probe, a magnetic recording head, a circuit lead frame, an encoder disc, an item of jewelry, a rule, a scale, a clutch plate, an emitter contact, a micro reactor, a suspension lead, an ink jet nozzle plate, a stencil, a razor foil, a bearing, an edge filter, a logo, a nameplate, a decorative plaque, an instrument case, a box, an enclosure and a potentiometer case made by the process of the present invention.

specially preferred articles are those wherein the etchant fully penetrated the metal or alloy in the article具体条款的例子有一个网格，过滤器，一标线，一个网格，一辆轻型直升机光盘，散热片板，一个加热元件，屏幕，彩色电视面具，膜片，一个垫片，垫圈，洗衣机，春天，一个齿轮，一个链接，一个探测器，磁性记录磁头，电路引线框架，编码器光盘，一饰物，一种规则，一个规模，一个离合器片，一个发射联络时，微型反应堆，项目一暂停铅，1喷墨喷嘴板，模具，剃须刀片，轴承，一个边缘滤波器，一个标志，一个铭牌，装饰牌匾，一个仪器的情况，一个盒子，一个外壳和一个电位案件过程中作出了本发明的。

Taking frequency conversion of semiconductor transistor as an example, the basic principles and some problems related are introduced in the article, integrating emitter-injected frequency conversion circuit of transistor, which is often used in superheterodyne to discuss about it.

分析了变频的基本原理和设计变频器的有关注意问题；从三极管输入回路和输出回路的信号入手，讨论了超外差式收音机常用的变频电路的工作原理。

The only heat entering the sample came from the transducer surfaces making heat transfer unidimensional although uneven due to the heat source from the emitter.

进入样品的热量只来自于能量转换器的表面，热量的传递是单向的且来自发送体的热源是不均匀的。

Because the upper transistor is an emitter follower (gain =~1); and the lower transistor is a variable resistor.

其增益大约为1，这大约为1的增益，不是晶体管放大所得，而是晶体管等效为电阻的结果。

In the source, lithium ions are extracted from a heated emitter (β- Eucryptite), focused by a electrostatic lens, and neutralized in a charge -exchange cell by sodium atoms.

它是从锂霞石热发射体上引出离子，经静电透镜聚焦，在中和室与钠原子进行电荷交换，通过离子偏转最后获得中性束。

Aiming at the key issue to solve urgently in signal processing of electronic warfare, system model and algorithms for signal sorting of unknown radar emitter in complex environments are studied systematically and exploringly in this dissertation.

针对雷达对抗信号处理研究工作中迫切需要解决的关键理论问题，本论文对复杂环境下未知雷达辐射源信号分选的体系结构和新方法进行了探索性和系统性的研究，获得了如下研究成果：1提出一种新的未知辐射源雷达信号分选模型结构。

Each encoder contains a lensed LED source, an integrated circuit with detectors and output circuitry, and a codewheel which rotates between the emitter and detector integrated circuit.

每个编码器包含一个透镜LED光源，一个探测器和集成电路输出电路和一个编码轮的发射器和检测器之间的旋转集成电路。

The coupling efficiency and alignment tolerance between the high power single emitter broad area diode laser and thecylindrical lensed multimode fiber has been discussed in the forth chapter; in addition, the simulation and the experiment have been done to support the theoretical results.

第四章详细讨论了利用柱状楔形微透镜多模光纤与大功率宽发射域半导体激光器的耦合效率；同样利用计算机辅助模拟了耦合过程，并通过实验验证了耦合系统的可行性，讨论了其在三维方向的容忍度。

The main topic in the thesis is the coupling the coupling between the high power single emitter broad area diode laser and micro lensed multimode fiber.

本文主要讨论大功率宽发射域半导体激光器的多模光纤微透镜耦合。

This model builds up the relationship between the levitation capabilities and the geometric parameters of a single-axis acoustic levitator, and proves to be successful in predicting resonant modes, Hm ( m =1, 2, 3, 4), and in explaining the axially symmetric deviation of the levitated samples near the reflector and emitter.

该模型揭示了声悬浮性能和以声波长为参考的悬浮器几何参数之间的本征关系，成功地预测声场的谐振模式 Hm ( m =1， 2， 3， 4为模式数， Hm 为反射端-发射端谐振间距)，并解释了反射端和发射端附近的悬浮样品偏离对称轴的实验现象。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失