Other causes to look for are insufficient drying or funnel flow inside the drying hopper-when material at the center flows quickly while material near the wall stagnates.
其它原因就是看看是否干燥不够或者在干燥料斗中存在漏斗流动- - -中心材料流动得快，而料斗壁附近的料静止不动。
In cylinder swirl is mainly formed by the strong air flow near the cylinder wall.
四气门柴油机缸内涡流主要由气缸周边处的强气流产生；
In cold test set of CFB, the effect of the main bed top structure on the particles descending flow near the bed wall has been studied.
在CFB冷态试验台上，深入研究了CFB主床的床顶结构对边壁下降流的影响。
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