1)gravity classifying,重力分级2)centrifugation-gravity grading,离心重力分级3)gravity classifier(grading),重力式分级器4)gravity-type air classifier,重力空气分级机5)gravity type air,重力型风力分级机6)Classification gravity concentration,分级重选
用法例句
The progress in research and application of common hydraulic and gravity classifying apparatus, novel gravity classifying apparatus, inclined plate (inclined tube) classifying apparatus, and unit integrated inclined narrow flow classifying apparatus at home and abroad are reviewed.
