英语词汇“high-vacuum tube”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	high-vacuum tube
释义	high-vacuum tube high-vacuum tube [′hī ¦vak·yüm ‚tüb] (electronics) Electron tube evacuated to such a degree that its electrical characteristics are essentially unaffected by gaseous ionization. Also known as hard tube.
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