law of equivalent proportions

例句：

1. 1. The law of equal opportunity is a fundamental principle in the field of education.
   平等机会的法律是教育领域的一项基本原则。
2. 2. The company's policy on equal pay for equal work is based on the law of equivalent proportions.
   公司关于同等工作同等报酬的政策是基于等效比例法则的。
3. 3. In the context of environmental protection, the law of equivalent proportions plays an important rolein ensuring sustainable development.
   在环境保护的背景下，等效比例法则在确保可持续发展方面发挥着重要作用。