chemical valence

• 化合价,化学原子价

chemical valence的用法和样例：

例句

1. The writing of formulas with elements and radicals that have a fixed valence is easy, if a knowledge of electrostics is applied.
   运用静电学知识写出具有固定化合价的元素和原子团组成的物质的分子式比较容易。