power-amplifier stage

To resolve the disadvantages of electrical discharge machining ( EDM) pulse power currently used, composite-structure current mode EDM power and two-stage current mode EDM power have been introduced.

针对当前电火花加工（EDM）电源存在的诸多缺点，本文采用电流型EDM电源新思想，提出了复合结构EDM电源和两级结构EDM电源两种新型EDM电源方案。

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Based on the exergy loss coefficient analysis, we can find that exergy loss mainly occurred in the three-stage thermostatic biogas system and gas engine power generation subsystem.

可以采用对沼渣进行回热回质，减小三级恒温生物质发酵子系统的火用损；

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This method is used to calculate the heat distribution and thermal deviation of the final stage reheater of a power boiler, and the calculating results conform to the measuring results.

利用该方法计算了某电厂锅炉末级再热器的流量分配和热偏差情况，与实测结果相吻合。

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At first three phases which are preheating stage, pressure lifting stage and constant-speed drying stage, the instrument calculates the optimal microwave drying power according to the sample's type and initial mass.

仪器根据被测试样的种类和初始质量，计算试样在预热、压力升高、恒速干燥阶段的最佳微波干燥功率；

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However, Due to the limitations of the single-stage converter, when the bus voltage is high and wide input voltage range, the single-stage converter is not suitable for multi-output low power switching power supply.

但是由于单级变换器自身的局限性，当电源母线电压宽输入范围时，单级变换器并不适合用作多路输出小功率开关电源的主功率拓扑。

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Discussions on 5 Percent Two Stage Drain Problem in Yiyang Power Plant

益阳电厂300MW机组5%串级疏水问题探讨

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At present, the research of the single-stage power factor correction ( PFC) circuits is mostly concentrated on the application of low powers. A zero-current-switching ( ZCS) single-stage AC/ DC converter with high power factor is proposed to use in medium and high power conditions.

目前，对单级功率因素校正电路的研究大多集中在小功率应用领域，为此该文提出一种能够应用于中大功率场合、实现了零电流开关的单级高功率因数AC/DC变换器拓扑。

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By analyzing the reference time bell was found at all stages, bell stage of extensor strength to relatively slow, and the performance of force in the lower stages of the time more power.

通过分析提铃各阶段时间比发现，伸膝提铃阶段用力相对较慢，而发力阶段表现为在较低的时间内完成更多的功。

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Features: High power gain , recommended for FM IF, OSC stage and AM CONV. IF stage.

特点: 功率增益高, 用于调频中频, 振荡级和调幅转换中频级.

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During the pile testing of Guichi power plant's first stage engineering, various synthetical tests are engaged in.

贵池发电厂首期工程在试桩中，进行了多项目的综合性试验。

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