Based on the gray system theory, the influence degree of the different variables on the fluidization quality was analyzed. 通过灰色系统理论方法，分析了各参数对系统流化质量的影响程度。
The graphite globularity quality of ductile iron with fracture toughness has been discussed. 研究石墨球化质量对球墨铸铁断裂韧性的影响。
