low-frequency noise

• 低频噪声

low-frequency noise的用法和样例：

例句

1. In sound recording,a low frequency noise usually produced by regular variations in the speed of a system's mechanical component.
   录音技术中的一种低频噪声，通常由于系统机械部件的速度有规律变化而引起。
2. Study on subjective annoyance and control method of indoor low-level and low-frequency noise and it's control.
   室内窄频带低频噪声烦恼度与治理对策研究。