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[期刊论文] 作者:Pei Cheng ZHANG,Sui Xu XU, 来源:中国化学快报(英文版) 年份:2004
A new flavonoid, namely pinnatifine Ⅰ (1), was isolated from the leaves of Crataegus pinnatifida Bge.var.major N.E.Br..Its structure was elucidated by spectros...
[期刊论文] 作者:Pei Cheng ZHANG,Sui Xu XU, 来源:中国化学快报 年份:2004
Two new C-glucoside flavonoids,namely 8-C-(-D-(2(-O-acetyl) glucofuranosyl apigenin and 3(-O-acetylvitexin,were isolated from leaves of Crataegus pinnatifida Bg...
[期刊论文] 作者:Hong Yan WANG,Sui Xu XU,Ying J, 来源:黑龙江科技学院学报 年份:2002
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...
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