英语词汇“power amplifier”的意思、释义、用法解释及翻译-双龙斋书画网

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词汇	power amplifier
释义	Definition of power amplifier in English: power amplifier noun An amplifier designed to increase the power of an electrical signal to the level required to drive a device or circuit, especially a speaker. Origin 1920s; earliest use found in Journal of the Institute of Electrical Engineers. Definition of power amplifier in US English: power amplifier noun An amplifier designed to increase the power of an electrical signal to the level required to drive a device or circuit, especially a speaker. Origin 1920s; earliest use found in Journal of the Institute of Electrical Engineers.
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