英语词汇“vacuum tube hearing aid”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	vacuum tube hearing aid
释义	vacuum tube hearing aid 基本Thesaurus 真空管助听器 as in.hearing aid 同义词 ear trumpet,electronic hearing aid,hard-of-hearing aid,listening device,transistor hearing aid hearing aidnoun mechanical listening device ear trumpet,electronic hearing aid,hard-of-hearing aid,listening device,transistor hearing aid,vacuum-tube hearing aid
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