The tests measured range of hearing over low, mid and high noise frequencies.

这些测试测量了对低、中、高频率噪声的听觉范围。

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High noise levels in laboratory animal facilities have been shown to adversely affect rodents.

在实验动物设施中高程度的噪音对于啮齿类有不利的影响。

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Ear protection is required for entry into designated high noise areas that include Utility Building, ETP blower room and boiler house (when one or two boiler run).

进入指定的高噪音区域要戴耳塞，有通用厂房，ETP风机房和锅炉房(当一台或两台锅炉运行时)。

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but the noise steadily increased. I arose and argued about trifles, in a high key and with violent gesticulations;

VOA: special.2009.02.02

The tests measured range of hearing over low, mid and high noise frequencies.

BBC: Hearing loss linked to passive smoking

To start with, the handset will feature a dedicated Waze launcher key for GPS navigation duties, and will also sport "high level noise reduction and echo cancellation, " along with hands-free voice activation.

ENGADGET

Superior Auto mode recognizes a wide range of shooting situations, adjusting exposure and other settings for high-quality images with low noise and high dynamic range.

ENGADGET: Sony Cyber-shot TX55 packs 16.2-megapixel sensor, promises 'extremely low' noise in dim light