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词汇 pollen tube
释义 ˈpollen tube
noun [C] a tube which grows when pollen lands on the top of the female part in the middle of a flower(stigma)to carry the male cell to the part that contains the female cell(ovule) 花粉管 ☞picture at flowerflower插图
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更新时间:2025/5/29 9:12:58