噪音值 meaning in Chinese
level of noise
Examples
- Acoustics - declaration and verification of noise emission values of machinery and equipment iso 4871 : 1996 ; german version en iso 4871 : 1996
声学.机器和设备噪音值的公告和验证 - Heat mirror ? can eliminating disadvantage of ordinary insulating glass ' s resonance , according to a test , ordinary insulating glass can insulate about 29db noises , but heat mirror ? can insulate about 34 . 5 db noises , with more than 5 db improvement of sound proving capability over ordinary insulating glass
消除一般中空玻璃共振共鸣的缺点，至少增加五分贝值的隔音性能，据测试，普通中空玻璃可隔绝29分贝左右的噪音，而热镜玻璃可隔绝34 . 5分贝左右的噪音值。