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对实验室级小型超细粉射流分级机中的流场分布进行了测量与理论分析，并通过数学回归，推导出了分级室中流场的速度分布方程。
The flow field distribution in a laboratory-scale small superfine jet classifier was measured and analyzed theoretically. The velocity distribution equation of the flow field in the classification chamber was deduced through mathematical regression.