Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/7aa388c7c69ff8bb7f16cb1fbb5e64df.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59
thermionic tubes英英字典_thermionic tubes剑桥英语解释_thermionic tubes柯林斯英文解释_果味酸柯林斯词典
果味酸柯林斯词典

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

    • 返回 thermionic tubes