中国每年遭受的强沙尘暴天气由50年代的5次增加到了90年代的23次。
Every year China suffered strong sandstorm weather increased from 50 s five times in the 90 s of the 23 times.
根据地面冷空气入侵陕西的路径分析，将造成陕西强沙尘暴天气的冷空气路径分为西路、西北路、北路三条。
According to path analysis upon the invading cold air on surface, the cold air paths causing heavy sand storm processes in Shaanxi are divided into the west, the northwest, and the north way.
作者从干旱气候背景、环流状况、沙尘源、沙尘路径及天气系统等方面进行了分析，并集中对引发强沙尘暴的蒙古气旋进行了诊断分析。
This study was conducted in the aspects, such as, dry climatic background, circulation conditions, possible sand-dust sources, paths of sand transportation, and synoptic systems.
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