noise regulation meaning in English

噪声调整
噪音控制

Cooling fan as an important noise source of automobile , its low noise aerodynamic performance design has been increasingly important with the issue of new noise regulation
汽车的冷却风扇作为汽车的一个重要的噪声源，它的低噪声气动性能设计随着新的噪声法规的出台变得日益迫切。
Helr publishes articles on a broad range of environmental affairs , such as land use ; air , water , and noise regulation ; toxic substances control ; radiation control ; energy use ; workspace pollution ; science and technology control ; and resource use and regulation
评论文章的范围涉及各种环境事件，包括土地利用；空气、水和噪声控制；有害物质控制；放射性控制；能源利用；工业污染；科学技术发展；资源利用。