hum balancer[电子] 交流声平衡器;交六平衡器;交流平衡器;详细翻译
hum level[电子] 哼声电平;临界声
hum modulation噪声灯;噪声调制;[电子] 哼声调制
hum potentiometer哼声电位计
base hum基极交流声
mains hum电源哼声;电源交流哼声
hum adjustment交流声调整;哼鸣调整
Flies hum苍蝇嗡嗡
heater hum丝极交流声;热极交流声
V-I（不及物动词） If something hums, it makes a low continuous noise. 发出连续低沉的声音
The birds sang, the bees hummed.
鸟儿唱歌，蜜蜂蜂鸣。
N-SING（单数型名词） Hum is also a noun. 连续低沉的声音
...the hum of traffic.
…低沉的车流声。
V-T/V-I（及物动词/不及物动词） When you hum, or hum a tune, you sing a tune with your lips closed. 哼 (曲子)
She was humming a merry little tune.
她轻轻地哼着一首欢快的小曲儿。
V-I（不及物动词） If you say that a place hums, you mean that it is full of activity. (地方) 繁忙
The place is really beginning to hum.
这个地方真的开始热闹繁忙起来了。