several divisions of primary endosperm nucleus

例句：

1. 1. The study focused on the development of several divisions of primary endosperm nuclei in different species.
   该研究关注了不同物种中初级胚乳核的几个部分的发展。
2. 2. The research revealed that several divisions of primary endosperm nuclei play a crucial role in plant growth anddevelopment.
   研究发现，初级胚乳核的几个部分在植物生长和发展中起着至关重要的作用。
3. 3.In this paper, we discuss the importance of several divisions of primary endosperm nuclei for crop improvement.
   在本文中，我们讨论了初级胚乳核的几个部分对作物改良的重要性。