dustfall

基本解释

The results illustrate: (1) The distribution of the dustfall in a year is not symmetrical in Hotan.
结果表明，和田降尘量的年内分布极为不均。
Make use of waste water in the depositing tank for water spreading and dustfall so as to reduce dust in the air.
现场大门口设置草垫及高压清洗机，及时冲洗车轮上的泥土，避免污染场外道路。
The dustfall samples collected under typical dust and non-dust weather were made particle size analysis in Lanzhou.
选择兰州市典型沙尘天气和非沙尘天气收集两类降尘,并对其进行粒度测定。
The quantity of the dustfall in spring and summer accounts for 93.14 percent of the total quantity, and it's less in autumn, then the least in winter.
春夏两季的降尘量占全年总降尘量的93.;14%25，秋季较少，冬季最少；
The dustfall samples collected under typical dust and non-dust weather were analyzed to examine their composition in Lanzhou.
选择兰州市典型沙尘和非沙尘天气收集两类降尘,并对其元素组成进行测定。