bivalent radical

例句：

1. 1.The bivalent radicals in the compound react with each other to form a complex structure.
   化合物中的双价离子相互反应形成复杂结构。
2. 2. In biology, bivalent radicals refer to the two-fold nature of genetic information.
   在生物学中，双价离子指的是遗传信息的两重性。
3. 3. The study of bivalent radicals is crucial for understanding the properties of metals and alloys.
   研究双价离子对于理解金属和合金的性质至关重要。