yolk-sac是什么意思 yolk-sac怎么读
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英 ['jəʊks'æk]
英 ['jəʊks'æk]
美 ['jəʊks'æk]
美 ['jəʊks'æk]
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卵黄囊
yolk-sac的英文翻译是什么意思，词典释义与在线翻译
名词 yolk sac:- membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
- membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
yolk-sac的用法和样例
- The yolk sac is gradually vascularized.
卵黄囊逐渐被血管化了。 - The dye Trypan Blue has a remarkable biphasic effect on pinocytosis by yolk sal.
染料锥虫蓝对卵黄囊的胞饮作用具有明显的双向作用。
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