用五孔探针测试旋流式气力分级机流场时，分级机内存在的静压梯度会对测试产生影响。
The static pressure gradient in cyclone air classifier can have influence on the test and measurement for its flow fields by five-hole probe.
根据对离心式空气分级机分级机理与流场研究，找出了影响分级粒径和分级精度的主要因素；
The operation principle of a rotor-type air classifier was analyzed and main parameters that affected the cut size, cleanness and recovery were chased down.
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