construction machinery noise的意思|示意

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。

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。