英语词汇“valve 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	valve tube
释义	> as lemmas valve tube valve tube n. ΚΠ 1827 M. Faraday Chem. Manip. xv. 367 Applying the mouth to the lower aperture of the valve tube. extracted from valven.¹ < as lemmas
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> as lemmas