vitelline substance

• 卵黄质

vitelline substance的用法和样例：

例句

1. The jelly rods, the vitelline envelope and the hatching envelope were all composed of glycoproteins.
   由电泳分析可知杆状胶体，卵黄外膜及孵育膜等卵外基质皆是由醣蛋白所组成。