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thermionic tubes英英字典_thermionic tubes剑桥英语解释_thermionic tubes柯林斯英文解释_贰靶汉英词典
贰靶汉英词典

thermionic tubes

T 开头单词

柯林斯词典

    thermionic valve (also thermionic tube)

    [美國英語]

  • 1. N an electronic valve in which electrons are emitted from a heated rather than a cold cathode 熱離子琯

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