交流: 1.(彼此把自己有的供给对方) exchange; interflow; interchange 短语和例子交流经验 exchange experience; draw on each other's experience; 交流计划 exchange programme; 城乡物资交流 flow of goods and materials between city an
It is sometimes mistaken for a power supply hum 有时候，亚音频会被错误的认为是电源交流声。
2.
It flew with the speed of the wind and gave forth a melodious sound ( a humming noise 它以风速飞行，发出了音调优美的声音（交流声？ ）
3.
The environment - preserved and high efficient power switch design not only saves energy but completely solve the problem of ac noise interference 绿色环保、高效的开关电源设计，既节能，又彻底解决交流声噪音干扰问题。
