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......

A modified method of preparing 20(S)-ginsenoside Rh2(G-Rh2) and the inhibitory effect of 20(S)-ginse- noside Rh2 on Hep-......