摘要
沙尘肆虐3月20日,北京、天津等13省区受到沙尘天气影响,这次沙尘天气是自2009年1月份以来影响中国范围最大、强度最强的沙尘天气过程。On March 20,13 provinces and regions with Beijing andTianjin included were affected by a sandstorm,the worst since Januarylast year in terms of its covered area and intensity.
出处
《新华航空》
2010年第4期28-29,124,126,156,共5页
