二极管

First the traditional non-optical detection technology for gas concentrations is briefly introduced, such as ultra-sound technology, gas sensing, catalytic thermal, gas chromatography, interferometry applications, and then the spectral analysis based on the concentration of gas detection is discussed. The latest technological developments on the differential absorption spectroscopy, Fourier transform infrared spectroscopy, tunable laser diode laser absorption spectroscopy, laser radar and differential absorption Raman scattering laser radar, laser-induced fluorescence spectroscopy, laser Photoacoustic Spectroscopy are reviewed in detail.

首先对传统的非光学气体浓度检测技术作出了简单的介绍，包括超声波技术、气敏法、热催化法、气相色谱法、干涉法应用技术，被动检气管法，然后重点阐述了基于光谱学分析气体浓度检测技术的最新发展动态，其中分别对差分吸收光谱技术、傅里叶变换红外光谱技术、可调谐激光二极管激光吸收光谱技术、差分吸收激光雷达和拉曼散射激光雷达、激光诱导荧光光谱技术、激光光声光谱技术进行了详细介绍，最后提出了现代气体浓度检测技术的发展方向。

A photodiode current is amplified and converted into a differential voltage.A common-gate topology is adopted to reduce input resistance.

前置放大器将光电二极管产生的电流信号放大并转换为差分电压信号。

It consists of light emitting diode ,an optical fiber probe ,and two photodetectors.

该光纤式振动计由发光二极管、光纤探头和两个光子探测器组成。

For more than 1 curie of radioactive material measurements, you can use micro-PIN diode probe, and its small size makes it easy to hot-room or other enclosed environments is disabled.

对于大于1个居里的放射性物质测量，可以用微型PIN二极管探头，它的小体积使它容易在热室中或其他密封环境中被屏蔽。

Front panel real-time switching PIN diode crystal probe and micro-probe measurements.

前置面板可以实时切换晶体探头和微型PIN二极管探头的测量。

Brand: Install nimble human relations / Agilent/ HP / HP detailed data: Price of powermeter of HP437B powermeter HP437B low, performance is good, it is programmable of an only channel average powermeter, it can be mixed occasionally with HP8480 series heat form a complete set of diode power probe is used.

品牌：安捷伦/Agilent/惠普/HP 具体资料： HP437B功率计 HP437B功率计价钱低、机能好，是一台单通道可编程的平均功率计，它可与HP8480系列热偶和二极管功率探头配套利用。

If you do not know or wrongly test a diode you will be unable to repair the equipment.

如果您不知道或错误的测试二极管，你将无法修复的设备。

Is a professional manufacturer of LED light emitting diode of the high-tech enterprise of electronic products.

是专业生产LED发光二极管电子产品的高科技企业。

Companies specializing in the development, production and sale of light-emitting diode and LED lighting.

公司专业研发、生产和销售发光二极管及LED照明灯具。

Furthermore, a new method for evaluating beam quality of laser diode is proposed.

在此基础之上，提出了一种新的针对激光二极管光束质量评价方法。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷