名词中文翻译
中文翻译：真空管
同义词：
['vacuum oscillator', 'vacuum tube amplifier']
例句：
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1. The vacuumtube was the first electronic device invented by Edison.
真空管是爱迪生发明的第一个电子器件。
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2. The vacuum tube amplifier is used to amplify audio signals.
真空管放大器用于放大音频信号。
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3.The vacuum tube was used in radios and televisions for decades.
真空管在收音机和电视机上使用了几十年。