2021.07.25 “末日场景”甘肃敦煌遭遇14级强沙尘爆，百米高沙墙瞬间吞没一切，天空直接变土黄色，黄沙遮天蔽日秒变“沙城”太恐怖了
A dust storm, also called sandstorm, is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Fine particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another. Wikipedia
沙塵暴（英語：Dust storm）為沙暴與塵暴的總稱，是一種多發生在乾旱和半乾旱地區的天氣現象，由強風刮起乾燥地表上的鬆軟沙土和塵埃形成，其導致空氣混濁，能見度變低。
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