plegaphonia

例句：

1. 1.The sound of the piano is a perfect example of plegaphonia.
   钢琴的声音是泛音现象的完美例子。
2. 2.The study of plegaphonia has significant implications for music theory.
   对泛音现象的研究对音乐理论具有重要意义。
3. 3.Plegaphonia is a fascinating phenomenon that occurs in many musical instruments.
   泛音现象是一种令人着迷的现象，发生在许多乐器中。