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heterotropous ovule

英 美
  • 横生胚珠

双语例句

    1. The ovule is unitegmic,tenuinucellate and anatropous.
      薄珠心,单珠被,倒生胚珠,蓼型胚囊。
    2. Frequently the basal ovule, which is the last one to be fertilized would abort.
      最后受精的基生胚珠经常败育。

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