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leq

1

The authors propose the method for predicting Leq of traffic noise on the sipping road surface in practice .

给出了坡道路面交通噪声等效声级及其在车流量较少条件下的预测方法，并与实测值作了比较。
2

Leq ( 15 min / 30 min )

等效连续噪音声级（15分钟／30分钟的量度）
3

Results The leq ( A ) did not exceed about criterion in polystyrene machine , rest room , control room , whereas most sound levels were distributed below 200 Hz by frequency analysis .

结果测量发现聚苯乙烯造粒机、聚乙烯造粒机、休息室。控制室的A计权网络的等效声级均未超过有关的标准，而频谱分析则发现其主要的声强级均分布在200Hz以下。