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根据科学观察监测表明,人如果长期生活在60分贝以上的环境中,便会引起慢性耳聋。国际居室噪声准则定在42分贝。空调器
According to scientific observation and monitoring shows that people living long-term 60-decibel or more environment, it will cause chronic deafness. International room noise guidelines set at 42 dB. Air conditioner