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字词 胎盘
释义 胎盘tāipán介于母体的子宫内壁和胎儿之间的圆饼状组织,通过脐带和胎儿相连,是胎儿和母体的主要联系物。{placenta; membranous vascular organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord}
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更新时间:2025/8/2 8:50:33