Therefore, in order to advance the control time of polymer particle size, we should control the two proceeding parameters earlier than the three latter parameters during unsteady state operation.
因此，在非稳态操作时，要实现聚合物颗粒粒径的控制，对第一类变量的控制应早于第二类变量。
The particle sizes measured by elutriation method and laser particle size analysis are bigger than those by the other two methods due to aggregation.
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。
Fourthly, we extend the two kinds of classical effective medium theory to the case of large particle size parameter.
第四，将两种经典的有效媒质理论推广到大粒子情形，求解涂层的有效光学常数。
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