女神经日常
女神经日常
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氦气 为什么会让人声音变尖呢
13 minutes
Posted Sep 12, 2014 at 11:24 pm.
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因为氦气的密度较空气小,在氦气的氛围中声音的频率会变大。使一个正常人在按照平时的说话习惯,声音听起来也能像娃娃声
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