短語詞組短語placental membrane 胎磐膜placental hook 胎磐鉤placental sinus 胎磐竇placental enzymes 胎磐酶placental migration 關於胎磐移行placental globulin 胎磐球蛋白placental adhesion 胎磐粘連placental immunity 胎磐免疫placental transport [生理]胎磐轉(zhuǎn)運placental abruption 胎磐早剝；胎磐早期剝離placental barrier 胎磐屏障 返回 placental