During the process of low mass flow, local refluence may occur in the exhaust manifold.
在具有低质量流量的过程中，排气管内部可能会发生局部回流。
Objective:To validate the feasibility of applying the extracting process of pot groups dynamic refluence in industrial manufacturing.
目的：验证罐组式动态逆流提取工艺应用于工业化生产可行性。
The seasonal refluence of the outflowing peasants increases the pressure of the social security and management in the outflowing area.
外出农民季节性回流，给流出地社会治安管理增加了压力；
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