It is shown that the existence of central screw conveyer produces the contrary swirl flow under some of the swirl vane Angle condition.
研究表明：由于进料螺旋输送器的作用，在一定的导流叶片角条件下存在着双旋流流场。
It is shown that the existence of central screw conveyer produces the contrary swirl flow under some of the swirl vane Angle condition.
研究表明：由于进料螺旋输送器的作用，在一定的导流叶片角条件下存在着双旋流流场。
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