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一、什么叫次声、自然次声和人工次声我们周围的世界,是一个充满了声音的世界。我们平常谈到的声音,是指人耳可以听见的声振动,其振动频率范围在16赫到20000赫之间,低于16赫的称为次声。次声广泛存在于自然界之中,如狂风骤
First, what is infrasound, natural infrasound and artificial infrasound The world around us is a world full of sound. The sound we usually refer to is the audible vibration that can be heard by the human ear. Its vibration frequency ranges from 16 Hz to 20000 Hz, while the sub-16 Hz is called infrasound. Infrasound exists widely in nature, such as the frenzy