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所谓噪声就是人类不喜欢的声音和对人类有危害性的声音。它在世界上已被列为公害之一。声级35～40分贝(A)是病员比较理想的声级范围,它相当近距离的轻声耳语(10分贝左右)或轻声说话(40分贝)。声级在50分贝以上即可引起病人烦恼及其
The so-called noise is the sound that humans do not like and the sound that is harmful to humans. It has been listed as one of the public hazards in the world. The sound level of 35-40 dB (A) is an ideal sound level range for the patient. It is quite close to a soft whisper (around 10 dB) or soft talk (40 dB). Sound levels above 50 decibels can cause patient trouble and