沙尘暴
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本片介绍了沙尘暴形成原因及其造成的危害。沙尘暴天气主要发生在春末夏初季节这是由于冬春季干旱区降水甚少,地表异常干燥松散,抗风蚀能力很弱,在有大风刮过时,就会将大量沙尘卷入空中,形成沙尘暴天气。
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視頻年代:2003
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