结果表明：中华须鳗嗅囊呈楔型； olfactory sac 嗅囊 An organic sac or pouch, such as the udder of a cow.
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The olfactory sac has well-developed primary lamellae, but no secondary lamellae.
嗅囊具发达的初级嗅板，但无次级嗅板。
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