1、The subharmonic of a wave is a component of its frequency that is an integer multiple of the fundamental frequency.
波的次谐波是其频率的一个分量，它是基频的整数倍。
2、In physics, subharmonics refer to frequencies that are below the fundamental frequency of a sound wave.
在物理学中，次谐波指的是低于声波基频的频率。