结果表明，蜗室中间的主流速度在不同转速下均呈抛物线型分布；
The results clearly document that the curves of vertical and main velocity in the middle area of the volute are parabolic at all running speeds.
能自动在不同转速下循环完成进料、分离、洗涤、卸料等工序，可实现远、近距离控制。
The machine can feed, separate, wash and discharge repeatedly at different rotating speeds. They can be controlled nearby or in the distance.
图中实线表示发动机在不同转速下能提供的最大转矩，而虚线表示负荷变动时压缩机正常工作需要的转矩。
The figure that the solid line at different engine speeds to provide the maximum torque, while the dotted line that the normal load changes in the work of the compressor torque needed.
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