With the same model the advantage of a five-stage cyclone preheater system is indicated.
利用同一模型阐述了五级旋风预热器系统的优越性。
Second, through to the partner screening channel, the flow and so on analysis, proposed partner screening must insist five big principles, as well as choice four stage model;
二是通过对合作伙伴筛选的渠道、流程等的分析，提出了合作伙伴筛选应当坚持的五大原则，以及选择的四阶段模型；
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