Engine noise is the major noise source of automobile; air power noise is one of composition parts of engine noise.

发动机噪声是汽车的主要噪声源，空气动力噪声是发动机噪声的组成部分之一。

youdao

In this paper, it is proposed that the circuit design, test method and the typical application of a kind of power noise filter.

文中介绍电源噪声滤波器的电路设计、测试方法及典型应用。

youdao

ECG artifact and power noise are successfully removed from the origanal EEG signal with the ICA method with no harm to the details of EEG signals.

利用ICA方法对实测脑电信号中的心电伪迹和工频噪声进行了消除，成功去除噪声并保留脑电信号的特征不变。

youdao

They have not evolved to tolerate some of the man made sounds that have very unusual and unnatural physical characteristics. These sounds are for example explosives, industrial noise, musical instruments, power tools, and headphones.

还没有进化到能忍受,某些怪异，超出常规的人为声响,如爆炸，工业噪音,乐器，电动工具和耳机等等。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

"The new TS-x12 series Turbo NAS servers offer affordable high performance coupled with ultra-low power consumption and virtually noise-free operation, " said Tony Lu, Product Manager from QNAP.

ENGADGET: QNAP's new Turbo NAS line features iOS streaming via WiFi, 3G

Each of the airline's business-class seats will offer video on-demand on a 15.4-inch television, iPod-playing capability through an in-flight entertainment system, a USB port and power outlet, and noise-canceling headphones.

FORBES: Magazine Article

This makes it easier to scale up the number of disks in the drive while keeping drive power consumption and acoustic noise at acceptable levels (and even lower than the air filled drives).

FORBES: Rare Gases and Fine Lines