英语词汇“politzer bag”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	politzer bag
释义	po·litz·er bag \pōˈlitsə(r)-\ noun Usage: sometimes capitalized P Etymology: after Adam Politzer died 1920 Austrian otologist : a soft rubber bulb used to inflate the middle ear by increasing air pressure in the nasopharynx
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