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......

Phylogenetics of Chilopsis and Catalpa (Bignoniaceae) was elucidated based on sequences of chloroplast ndhF and the nrDN......

A new cafferic ester,(+)-2-(1-hydroxyl-4-oxocyclobexyl) ethyl caffeate,was isolated from the 80% ethanol extract of the ......