Engine exhaust noise is a main source for construction machinery noise, and it has a very significant impact on the level of construction machinery noise.
发动机排气噪声是工程机械整机噪声中最主要的噪声源，对于工程机械整机噪声水平的高低有重要的影响。
To adopt the construction machinery with low noise for the field construction to alleviate the noise.
现场采用低噪音施工机械施工，减轻噪声扰民。
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