Smart materials with a combination of tough solid-like properties,fast self-healing and optical responsiveness are of in......

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......

本文采用D.T.Suzuki的方法,研究了黑果蝇Drosophila virilis Sturt dlts品系的温度敏感时期和致死时期的相互关系.选择了31℃为限......