fundamental harmonic

例句：

1. 1. Fundamental research is the foundation of any scientific discovery.
   基础研究是任何科学发现的基础。
2. 2. The fundamental principle of this method is to identify and eliminate errors.
   这种方法的基本原理是识别并消除错误。
3. 3.Fundamental rights are those that are guaranteed by law and cannot be abridged.
   基本权利是由法律保障的，不能被削减的权利。