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Tribological evaluation of environmentally friendly ionic liquids derived from renewable biomaterial
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
We substituted several environmentally friendly catalysts which included HY and H-β zeolites, various cation-exchanged ......