卵黄周的

基本解释 (translations)

perivitelline

与卵黄周的相关的网络例句 [注：此内容来源于网络，仅供参考]

The fetus is on the left and the yolk sac still bigger than the fetus is on the right.

这是一张六周胚胎的图片，胎儿在左边，比胎儿还要大的卵黄囊在右边。

At least during a week after outgrowing their yolk-sacks, they are not able to survive without "Discus milk", at the expiration of this period they attain enough functionality to feed on freshly hatched brine shrimp.

在小鱼开始能自由游动后的三周里，他们靠吸收亲鱼背鳍上的分泌物&七彩奶&过活。至少，在吃完剩卵黄的一周内，他们没有&七彩奶&也不能存活。