polyharmonic function

例句：

1. 1. The polyharmonic function is a crucial component of the system's stability.
   多谐函数是系统稳定性的关键组成部分。
2. 2. In this study, we investigated the effect of polyharmonic functions on the performance of the system.
   在这项研究中，我们研究了多谐函数对系统性能的影响。
3. 3. The polyharmonic function was used to model the dynamics of the system.
   多谐函数被用来模拟系统的动力学。