nucellar perisperm

• 珠心外胚乳

nucellar perisperm的用法和样例：

例句

1. The perisperm cells with flat walls are full of starch grains.
   外胚乳细胞壁平直，细胞内充满淀粉。
2. Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.
   营养物质可以贮藏于由珠心产生的一种特殊组织，叫外胚乳。