street dusts是什么意思

用法例句

A total of 38 samples of street dusts collected from Baoji were analyzed by the Atomic Fluorescence Spectrophotometer(AFS) to study the contents and the spatial distributions of arsenic and mercury of street dusts of Baoji,and compared with the contents of Chinese Soil Element Background Value(CSEBV) and the contents of arsenic and mercury of other cities.

利用原子荧光分光光度计对宝鸡市38个街尘样品进行分析测试,以研究街尘中As和Hg含量的水平及其空间分布特征,并与中国土壤及其他城市街尘中的含量进行对比。