与"opercular aperture"相近的词条

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• operator's stool
• opercle
• opercula
• opercula insulae
• opercular
• opercular aperture
• opercular bone
• opercular cell
• opercular chamber
• opercular fold
• opercular gill
• opercular layer
• opercular muscle
• opercular part
• opercular sac
• opercular valve

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