primary harmonic wave

例句：

1. 1. The primaryharmonic wave in the spectrum is responsible for the color of light.
   光谱中的初级谐波波负责光的颜色。
2. 2.In the study of electromagnetic waves, the primary harmonic wave is a fundamental concept.
   在电磁波研究中，初级谐波波是一个基本概念。
3. 3. The primary harmonic wave in the spectrum is responsible for the color of light.
   光谱中的初级谐波波负责光的颜色。