Based on the gray system theory, the influence degree of the different variables on the fluidization quality was analyzed. 通過灰色系統理論方法，分析了各參數對系統流化質量的影響程度。
The graphite globularity quality of ductile iron with fracture toughness has been discussed. 研究石墨球化質量對球墨鑄鐵斷裂韌性的影響。
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