离心风机的转速及其出风口角度是影响联合收割机筛面气流场分布的两个主要因素。
Speed and the Angle of tuyere of Centrifugal fan are main factors for Combine sieve surface airflow distribution.
理论分析了风筛式清选装置的筛面流场，试验研究了其主要参数对流场的影响规律，指出了简易风筛式清选装置合理的筛面气流分布类型及其获得途径。
This paper analyzed the surface flow field of the air and screen cleaning mechanism and studied the effect of main parameters on flow field.
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