英语短语词组词汇thermionic valve的音标、释义、翻译、用法及例句-英语短语词组词典

短语	thermionic valve
释义	thermionic valve = thermionic tube [英国英语]真空管(= vacuum tube)
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英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。