英语词汇“pollen tube”是什么意思，“pollen tube”的读音、用法及例句翻译-烛光网

词汇	pollen tube
释义	pollen tuben.（名词） The slender tube formed by the pollen grain that penetrates an ovule and releases the male gametes.花粉管：由穿透胚珠并释放出雄性配子的花粉粒形成的细管
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