You find that with any existing simple "noise-meter", vehicles which are judged to be equally noisy may show considerable difference on the meter.
你会发现，使用任何现有的简单“噪音表”，被判定为发出同样大小噪音的车辆，在表上可能显示出相当大的差异。
This article introduces the method of extending noise figure meter HP 8970a measurement frequency range.
本文介绍了扩展噪声系数表hp 8970a测量频率范围的方法。
Conclusion Recording sound level meter can be well used to measure and assess noise exposure in complicate working environment.
结论个体噪声暴露测量可以较好地解决现场复杂情况下的噪声暴露评价问题。
Have you ever been to a sporting event and seen a "noise meter" appear on the big screen?
你曾经去过一次体育盛会，看到一个“噪音计”出现在大屏幕上？
The reason why the abnormal noise occurs during operation of diaphragm gas meter is analyzed, and the corresponding solution is put forward.
分析了膜式燃气表运行过程中有异常噪声的原因，提出了相应的解决方法。
The noise of system with 1 meter distance could be below 70 dB, satisfy the lab working area requirement.
距离1米处可听噪声不超过 70分贝，满足试验室现场要求。
The noise of system with 1 meter distance could be below 70 dB, satisfy the lab working area requirement.
距离1米处可听噪声不超过 70分贝，满足试验室现场要求。
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