以下为句子列表：
英文: A high efficiency dual-band RF power amplifier has an output and/or input of a high frequency transistor well terminated at the second harmonic frequency for dual-band operation.
中文: 本发明乃一种高效率双频射频功率放大器，提供高频电晶体的输出端与╱或输入端于双频操作中有良好的二阶谐波终止。
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英文: A method where the direction of light passing through a crystal is changed using a high frequency sound wave.
中文: 在那里光的指示过去的一种方法透过一颗晶片被使用高的频率声波改变。
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英文: A new fast digital filter of on line eddy current testing system for decreasing the effect of high frequency noise was researched.
中文: 摘要针对涡流在线检测系统中的各种高频噪声影响，设计了快速去噪滤波算法。
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英文: A novel current control mode pulse width modulation switched high frequency resonant arc igniting device is developed based on UC3842 and the principle is analyzed.
中文: 摘要采用UC3842设计了电流控制型脉宽调制开关式高频振荡引弧器，并对其工作原理进行了分析。
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英文: Abstract: In this paper ,the failure analysis of a type of high frequency power transistor is introduced .
中文: 摘要：介绍了对某型号高频大功率晶体管进行的失效分析。
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