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水泥、机械、冶金、电机电器、陶瓷和化工等6个行业的噪声危害情况,共测定作业点1069个,噪声强度为55～115dB(A)。应用平均等效声级法进行分析,水泥业为94dB、机械业87dB、冶金业
Cement, machinery, metallurgy, electrical appliances, ceramics and chemicals in 6 industries. A total of 1069 operation sites were measured with noise intensity of 55 ~ 115dB (A). Application of the average equivalent sound level method for analysis, the cement industry is 94dB, machinery 87dB, metallurgical industry