...eral Search (普通检索)：查收录（来源）文献 Cited Ref Search (引文检索)：查被引文献 Structure Search (化学结构检索) Advanced Search (高级检索)：复合检索表达式检索 SARS SARS相关事实、数值数据查询 相关事实、数值数据查询 适用检索工具...
基于36个网页-相关网页
此次是在DII基础上增加了专利全文(称为Thomson Patent Store)和化学信息/化学结构检索(Derwent Chemistry Resource)两个模块，目前已正式开通，欢迎各位读者广为使用。
基于12个网页-相关网页
它具有化学结构检索和文字检索两大检索功能，并便于数据库维护、中文处理、图形存贮和使用方便等特点。
It is satisfied in maintenance of database, treatment of Chinese text and storing of graph. It is easy to use.
结构检索方法建立在图子图匹配算法VF 2的基础上，对其进行了必要的改造和扩展，使之适合于化学结构检索。
The VF2 graph matching algorithm on which the chemical structure search system was based has been modified and extended appropriately.
这主要是由于反应数据库基于结构的检索方法与化学家解决问题的方法相去甚远。
The main reason is that the current reaction databases are based on substructure searching which is an approach quite different from that chemists often use.
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