Description
现在出差或工作时，我们通常选择乘坐高铁。但是，当我们离得很远时，我们将乘飞机飞行，这不仅可以节省大部分时间，而且更经济。我们通常会或多或少有点不合适。这时，我们通常要求空乘人员拿一个口香糖并在嘴里面咀嚼。但是，许多人认为口香糖是保护耳朵和防止耳鸣的一种方法，这是事实。飞机起落是在垂直方向做变速运动，机舱内的空气压强会产生变化。由于人耳内的鼓膜将内耳和外耳的空气隔离，因此当外耳气压随机舱气压变化时，鼓膜内外会有压力差，严重时可造成鼓膜破裂。嚼口香糖的吞咽动作可打开与咽喉相通的咽管，保证鼓膜两边的气压相同，不会受压鼓胀。
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