The special topography, climate conditions and the underlying surface with the source of the abundant sand were the material base of forming sand and dust storm.
特殊地形、气候条件和富含沙尘源的下垫面是形成沙尘暴的物质基础；
The effects of floating dusts of sand and dust storm to raw coal, coke and content of ashes is analyzed, and some emergency measures, future work methods and left questions in put forward.
分析沙尘暴的扬尘对生产中原煤和焦炭灰分含量的影响，提出应急措施和工作方法以及遗留问题。
The comparison between the analysis results of the loess samples and the dust aerosol samples shows that this experiment method is very good to do dust source and sand dust storm researches.
黄土样品的分析结果与粉尘气溶胶样品的离子分析结果对比表明，此方法对于探讨粉尘起源以及沙尘暴天气的研究具有重要意义。
The phenomenon of wind erosion and desertification is widespread in mountain area of hebei province and it plays an important role in sand-dust storm in2000.
风蚀沙化现象在河北山区普遍存在，在2000年的沙尘暴中扮演了重要的角色。
The analysis indicates that the transporting force of sand-storm activity and matter in sand dust source area are the decisive factors of sand storm activity.
分析表明，沙尘暴活动的搬运动力和沙尘来源区物质所处状态是沙尘暴活动与否的决定因素。
The results show that upper trough and shear line and thermal depression are main synoptic systems introducing summer sand-dust storm.
研究发现高空小槽、切变线、热低压是引发夏季沙尘暴的主要天气系统。
And she said most of the days the weather is fine. Most dust actually comes due to sand storm from Gobi dessert not too far away up north west.
她说大部分时间天气很好，大部分的灰尘都来自西北的戈壁滩。
The phenomenon of wind erosion and desertification is widespread in mountain area of Hebei province, and it plays an important role in sand-dust storm in 2000.
风蚀沙化现象在河北山区普遍存在，在2000年的沙尘暴中扮演了重要的角色。
Sand storm and dust devil in spring in northern parts were extremely frequent.
春季北方扬沙和沙尘暴天气异常频繁；
Because of natural and human factors, Heilongjiang province become one of the main area affected by sand-dust storm in northern regions of China.
由于自然及人为因素的作用，黑龙江省成为我国北方沙尘暴影响地区之一。
The origin of the sand and dust in the sand-dust storm forms the indispensable material condition.
沙尘暴尘源物质的形成及分布是形成沙尘暴必不可少的物质条件。
The utility model relates to a dust storm sampler, which is used for collecting grains in dust storm whether, sand blowing whether and floating whether.
本实用新型涉及一种用于采集沙尘暴天气、扬沙天气、浮尘天气空气中颗粒物的沙尘暴采样器。
The probability of strong wind and sand-dust storm decreased.
大风和沙尘暴发生概率减少。
The probability of strong wind and sand-dust storm decreased.
大风和沙尘暴发生概率减少。
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