This level is also a safety limit to avoid health harm of environmental noise.
最高允许值也是为避免环境噪声对人的健康危害而定的一个安全界限。
Jet noise is very common, and it is the most important source of environmental pollution.
喷注噪声是一种最常见的噪声，它是环境噪声污染的重要祸源。
Noise is a kind of environmental pollution.
噪声是一种环境污染。
Besides, without dust and noise, this machine is environmental oriented.
该机是环保型机器，无粉尘和噪音污染。
Pure electric drive, zero release, low noise and more environmental construction.
纯电力驱动，零排放，低噪音，施工更环保。
This Standard is applicable to the environmental quality assessment and management of the noise.
本标准适用于声环境质量评价与管理。
Low noise: The machine work smoothly quiet, energy saving and environmental protection.
噪音低：本机工作宁静平稳，节能环保。
Completely noise-free operation, environmental protection energy saving.
完全无噪音运行，环保节能。
Completely noise-free operation, environmental protection energy saving.
完全无噪音运行，环保节能。
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