• Conclusion the average equivalent sound level maybe as comprehensive index to evaluate the noise hazard in industrial enterprises.

    结论平均等效声级可以作为评价和比较工业企业噪声危害程度综合指标

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  • Results The average equivalent sound level and the detectable rate of workers hearing loss were exponential positive correlation, the coefficient of correlation r was 0 812 45.

    结果检出率平均等效声级增加而明显增加趋势,平均等效声级噪声作业人员损检出率呈密切指数相关关系(相关系数r为0 812 45 )。

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  • The sound produced by the vacuum cleaner amounts to about 68 decibels, equivalent to the noise level of a normal conversation.

    这种吸尘器制造音量大约在68分贝相当于稍微大声点普通谈话音量

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  • Then use this model to predict equivalent continual sound level of road traffic noise, the fluence factors as the traffic flowing and the equivalent acoustic levels were output.

    运用模型预测道路交通噪声等效声级预测因子作为样本输入网络模型,噪声等效声级作为样本输出

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  • Aiming at the traffic noise problem of Lhasa, the author USES artificial neural network theory and method to predict the equivalent consecutive sound level of traffic noise in Lhasa.

    针对拉萨市道路交通噪声污染问题运用人工神经网络理论方法拉萨市道路交通噪声等效连续声级进行预测。

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  • If the toy has a clearly defined operating cycle, measure the time average (the equivalent continuous) sound pressure level in each microphone position during at least one whole cycle.

    如果玩具明显运行周期至少在一个完整周期内测得每个麦克风按时平均(均等连续)声压水平

    youdao

  • If the toy has a clearly defined operating cycle, measure the time average (the equivalent continuous) sound pressure level in each microphone position during at least one whole cycle.

    如果玩具明显运行周期至少在一个完整周期内测得每个麦克风按时平均(均等连续)声压水平

    youdao

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