It has two functions; structure search and text search.
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。
The VF2 graph matching algorithm on which the chemical structure search system was based has been modified and extended appropriately.
设计了一种基于大型数据库管理系统Oracle的化学结构数据存储模式,并实现了相应于此模式的高效化学结构检索方法。
New arithmetics were advanced discriminately according to the character of two kinds of sub-structure searching.
进而针对两类子结构检索各自的特点提出了新的基于广度优先的匹配算法,此算法以特征原子作为初始匹配点能大大减少匹配的盲目性。
The authors employ element index, attribute index and structure index to record the XML document structure so as to excel the XML expressing capability.
指出传统信息检索技术对XML文档的处理,没有考虑其结构信息,描述粒度不够细致,故不能充分挖掘XML文档的表达能力;认为采用元素索引、属性索引和结构索引来记录XML文档的结构信息,可在细粒度上记载XML文档的结构,从而深层次地挖掘XML文档的表达能力。
In order to establish efficient access path, the authors put forward a structure index for XML data, and introduce a method of implementing operations based on.
为了建立高效地访问路径提出了一种 XML数据的结构索引 ,并介绍了利用结构索引实现基本的数据操作的方法 。
This paper introduces the research situations on MarcXchange document and discusses deeply the structure index techniques based on MarcXchange document,which includes the logical structure,schema analysis,structure index framework,index algorithm,updates for structure index.
介绍了目前MarcXchange文档的研究现状,对基于MarcXchange文档的结构索引技术(其中包括MarcX-change的逻辑结构、Schema分析、结构索引框架描述、结构索引实现算法、结构索引更新和维护等)作了较深入的探讨,并对基于这种结构索引的查询进行了仿真实验,结果说明查询响应时间较快。
Research purposes: The main structure form of the roof of New Guangzhou Railway Station is inner cable-arch structure,so the researches are done on it for the purposes of getting more knowledge about the stress performance of cable-arch structure to provide the basis for construction and design.
研究目的:新广州站房屋盖主要采用内凹式索拱结构形式,为全面了解和掌握索拱结构的受力性能及可能产生的5种影响,为施工图设计提供依据,特对此进行研究。
Based on a cable-arch structure,stayed systems are introduced to a stayed cable-arch structure.
在索拱结构的基础上添加上部斜拉系统则构成了斜拉索拱结构,因此两种结构呈现出不同的受力特性。
A nonlinear analysis method with sliding cable elements for the cable structures
悬索结构非线性分析的滑移索单元法
PRINCIPLE AND METHOD OF MEASURING CABLE TENSION IN A CABLE STRUCTURES
索结构中拉索张力测量的原理与方法
Study of Results Overlap and Uniqueness Among Major Chinese Web Search Engines
中文搜索引擎的搜索结果重合率研究
A knot that joins a rope to a rope or another object.
索结连结两条绳子或一条绳与另一物体的结
The index component is not running anywhere. Search results will become out-of-date.
索引组件未在任何位置运行。搜索结果将过期。
When the search is complete, click Save Search on the toolbar.
当搜索结束后，点击工具栏上的保存搜索。
Result Optimization of Meta Search Engine Based on Agent;
基于Agent的元搜索引擎检索结果优化研究
Research and Improve on Clustering Method of the Search Engine s Retrieved Results;
搜索引擎检索结果聚类方法的研究与改进
a knot used to connect the ends of two large ropes or hawsers.
用来连接两个大绳索或者系船索的结。
A Tentative Analysis of Chinese bei-Construction within Minimalist Inquiries: the Framework,;
《最简探索:框架》下对“被”字结构的再探索
German eye splice
顺绳索扭劲的眼环结
a square knot used in a reef line.
在收帆绳索上用的平结。
locking and unlocking rail
(索道的) 挂结和脱开轨道
Sommerfeld fine-structure constant
索末菲精细结构常数
high ligation of internal spermatic cord vein
精索内静脉高位结扎术
Study on Markush Structural Feature Analysis and Retrieval System;
Markush结构分析与检索系统
Probe into Structure Be+Adjective+of+Object
“be+形容词+of+宾语”结构的探索
Design of Cable and Membrane Structures Awning and Analysis on Accident of Membrane Structure Projects;
索膜结构挑蓬设计及膜结构事故分析