采用淘析法、激光粒度分析法、渗透过滤法、显微镜法对膨润土及石英的粒度进行测量比较分析。
The particle sizes measured by elutriation method and laser particle size analysis are bigger than those by the other two methods due to aggregation.
为进一步提高聚乙烯粒料包装系统淘析器的分离效率，对系统内气相流场进行了研究和分析。
Three-dimensional flow field in the elutriator of polythene packed system is simulated based on the standard k-e model provided by FLUENT, is studied firstly to improve the separation efficiency.
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