胎囊 概述 胎囊(Foetal Sac)，也叫孕…
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The chorion and amnion are foetal membranes that contribute to the placenta and the foetal sac respectively.
绒毛膜和羊膜是分别形成胎盘和羊膜囊的胎膜组织。
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Brian Hosie, of SAC Consulting veterinary services, said any farmers encountering foetal abnormalities, stillbirths or newborns showing signs of nervous disease should contact their vet or SAC.
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