为什么大多数人听到刮玻璃的刺耳声音，都感到难受
提问者 :
张鹏轩
时间 :
2011-11-25 11:46
所属分类 :
家居装修-装修中-水木工程
回答详情
共有1个回答
-
虾米楼市政策
任对外界的感知耐受程度都是有所不同的，比如声音，人的耳朵能够听到频率在20到16000赫兹之间的声音，然而，当声音强度接近135分贝时候，就会导致疼痛。此外，超声波和次声波也能对人体产生影响。通过在人群中生成高强度的警报声、口哨声、爆炸声或其他声响，声学非致命武器就能起到疏散人群、建立隔离区的作用。
2011-11-25 12:19
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