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单词 θ18941
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > yolk > yolk duct (2)
yolk duct1827

= yolk stalk n.

yolk stalk1884

the stalk connecting the yolk sac with the intestine of the embryo.

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更新时间:2025/1/31 13:04:52