中英互译
yolk sac
基本释义
- 卵黄囊：大多数脊椎动物中的一种膜囊，包裹着卵黄，通过卵黄柄与胚胎的肠腔相连，供应有血管，将营养卵黄产物输送到发育中的胚胎。
双语例句
- Extraembryonic mesoderm migrates through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.胚外中胚层在妊娠的第6.5至7.0天之间通过原始条带迁移到推测的卵黄囊。
- The yolk sac is shrinking.该卵黄囊缩小。
- The yolk sac is gradually vascularized.卵黄囊逐渐被血管化了。
网络短语
- yolk sac tumor卵黄囊瘤；卵巢内胚层窦瘤；又称卵黄囊瘤；肿疡
- secondary yolk sac次级卵黄囊
- primary yolk sac初级卵黄囊；即原始卵黄囊
- Yolk sac umbilicus卵黄囊脐
- Yolk sac sarcoma卵黄囊瘤
英英释义
- n.membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional
- n.membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes; circulates nutrients to the developing embryo