极高频

And the design principle of transmitting wire and pules source with high frequency can be provi ed.

脉冲电磁波的传输特性在高频条件下对火花放电的影响很大，本文运用传输线理论研究电火花加工极间间隙内脉冲电压及电流波的传输行为，为电源和传输线设计提供依据。

The charge pump electronic ballast circuit which employs a charging capacitor and a high frequency AC source to implement the power factor correctionhas become an attractive topology for the ballast of the fluorescent lamp.

电荷泵式电子镇流器，采用充电电容和高频交流源，以实现功率因数校正，这已成为荧光灯镇流器中极有吸引力的电路拓扑。

The charge pump electronic ballast circuit which employs a charging capacitor and a high frequency AC source to implement the power factor correctionhas become an attractive topology for the ballast of the fluorescent lamp.

西安无线电二厂，陕西西安710016）摘要：电荷泵式电子镇流器，采用充电电容和高频交流源，以实现功率因数校正，这已成为荧光灯镇流器中极有吸引力的电路拓扑。

At first, I collect and analyze the relative dates, and statistics fault models. Then I finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. The following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. At last, I make the update generator in batch process, and collect and analyze reliability dates again. I proved that the life of the improved HF electrodless light is over to 60,000 hours.

首先进行了与可靠性相关的数据收集与分析，对故障模式进行统计；然后从电路结构、环境应力及容差三个方面进行可靠性分析，从而为关键的可靠性设计提供了依据；接下来的可靠性设计，从电路设计、热设计、降额使用、筛选四个方面逐一解决了可靠性分析阶段发现的问题；最后，我将改良的发生器批量生产，并从中重新收集了可靠性数据进行计算，事实证明改良后高频无极灯的平均寿命已达到6万小时。

The power of Electric Super Low-Volume Sprayer is alternating current of 220 volt.

电动超低容量喷雾器使用220V交流电，高频、高速、电机旋转带动风叶产生高速气流，将药液送到喷管与产生的高速气流会合，将药液雾化成极小的微粒。

Specially designed for your preparation include: fluorescent lamps, energy saving lamps, halogen lamps, metal halide, high pressure sodium lamp, high-frequency electrodeless light and so on.

特为您准备有：荧光灯、节能灯、卤素灯、金卤灯、高压钠灯、高频无极灯等。

Several types of processes and characteristics of super-fine SSP are analyzed and compared, they are high frequency plasma spherical method, direct current plasma spherical method, carbon pole electrical arc spherical method, gas burnt flame spherical method, high temperature fused quartz jet and chemo synthesis spherical method.

本文对国内的研究开发现状和国际球形石英粉的生产现状进行了分析研究；分析比较了高频等离子球化法、直流等离子体球化法、碳极电弧球化法、气体燃烧火焰球化法、高温熔融喷射以及化学合成球化法的工艺特点。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。