英语词汇“air bladder”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	air bladder
释义	air bladder 1. a vesicle or sac containing air. 2. Also called gas bladder, swim bladder. Ichthyol. a gas-filled sac located against the roof of the body cavity of most bony fishes, originally functioning only as a lung, now serving in many higher fishes to regulate hydrostatic pressure. [1725-35]
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