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胚外膜
meaning in English
extraembryonic membranes
Related Words
胞胚
胚冠
胚茎
幼胚
动胚
胚后期
胚表层
胚叶
胚环
胚体腔
胚外结构
胚外毛细血管网
胚外内胚层
胚外内皮
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