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 novel flavanol bearing phenylpropionic acid moiety at C-4 through a C-C bonding, named brainin A (1), was isolated fro......

The ultrastructure of oogenesis in Dryopteris crassirhizoma Nakai has been investigated using transmission electron micr......