airborne noise

ISO7779 ( 1999) Acoustics – Measurement of airborne noise emitted by information technology and telecommunications equipment.

资讯及通讯设备的噪音量测技术。

Measurement method of airborne noise emitted by marine diesel engine

GB/T9911-1988船用柴油机辐射的空气噪声测量方法

China is now capable of building the world's first underwater vacuum tube train, a futuristic form of transportation that can achieve supersonic speed and reduce airborne noise, according to Chinese academics and scholars.

据中国的学者和学术研究人员表示，中国现在有能力建设世界上第一条水下真空管列车--这种未来的交通方式，其速度可以超过音速、且能大幅度降低噪音。

" We'll evaluate the airborne noise in there and the effects of all of the development changes that we made on the design as it exists," he explains.

“我们会评估空气和噪声的存在影响所有的发展变化，我们的设计，因为它存在，”他解释说。

Portable pneumatic extinguishers Measurement of airborne noise at the operator's ear

便携式风力灭火机耳旁噪声的测定

Acoustics& Guide to standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings

GB/T14259-1993声学关于空气噪声的测量及其对人影响的评价的标准的指南

General method for measurement of airborne noise emitted by construction machinery and equipment

GB/T13802-1992工程机械辐射噪声测量的通用方法

The noise indicators of ship include radiated noise, self noise, target strength and internal airborne noise.

舰船的噪声指标主要包括辐射噪声指标、自噪声指标、目标强度和舱室空气噪声指标。

Airborne noise can be blocked by barriers ( walls, thick glass) or reduced by absorbers, such as foam insulators.

空降噪音可阻断障碍（墙，厚玻璃）或减少吸收剂，如泡沫绝缘体。