sand of storm

基本解釋

The river and air pollution, the phenomena of sand storm, etc. have been shocking by the sight.
河流污染，空氣污染，沙塵暴等現(xiàn)象已是觸目驚心。
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The frequency of sand dust storm has a close relation with meanannual wind speed in the arid, and semi-arid area in China.
在中國(guó)北方地區(qū)的干旱背景下，年均沙塵暴的發(fā)生頻率與年均風(fēng)速的相關(guān)性較強(qiáng)。
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，沙塵暴活動(dòng)的搬運(yùn)動(dòng)力和沙塵來源區(qū)物質(zhì)所處狀態(tài)是沙塵暴活動(dòng)與否的決定因素。