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有关环隙对叶轮式超细分级机性能的影响研究尚未有公开发表的资料，本文在这方面做了一些初步的实验研究。实验研究发现：环隙对分级性能的影响很大，把环隙作为调控参数很有前途。
The impact of annular gap on the performance of the impeller superfine classifier has not yet been published in the literature, the paper in this regard to do some preliminary experimental study. Experimental studies have found that: ring gap on the grading performance of a great influence on the ring gap as a regulatory parameter promising.