元搜索,Meta search
1)Meta search元搜索
1.Research on intelligent meta search engine ACISE based on agents collaboration;基于多Agent协作的智能元搜索引擎ACISE系统的研究
2.Implement of subject web search engine based on meta search;基于元搜索的专题式Web搜索引擎的实现
3.In order to improve the precision of meta search engine,an improved merging algorithm of meta search results is proposed.为了提高元搜索引擎的查询精度,提出了一种改进的元搜索结果合成算法。
英文短句/例句

1.The Research and Design on Personalized Search for Meta Search Engines;元搜索引擎个性化搜索的研究与设计
2.Technical Characteristics of Vivísimo;Vivísimo元搜索引擎技术特征
3.Deep Development of Traditional Search Engine Technology- Metasearch Engine搜索引擎技术的新发展—多元搜索引擎系统
4.Research and Implementation on the Professional Meta-Search Engine;基于元搜索的专业搜索引擎的研究与实现
5.Research and Implementation of theChinese Search Engine Based on Meta Search;基于元搜索的中文搜索引擎研究与实现
6.Research and Implementation of Meta-search Engine Based on Specialized Search Engine;基于专业搜索引擎的元搜索引擎的研究与实现
7.The Research of Domain-Oriented Search Engine Model Based on Meta-Search Scheduling;基于元搜索调度算法的领域搜索模型研究
8.Research on the Meta-search Based Bilingual Intelligent Translate Search Engine基于元搜索的双语智能翻译搜索引擎的研究
9.Study on Sub-Search Engine Scheduling Strategy for Chinese Meta Search Engine中文元搜索引擎成员搜索引擎的选择策略研究
10.Study on Content-based Image Meta-search Engine Technology;基于内容的图像元搜索引擎技术研究
11.The Design and Experiment of the Intellectualization of Meta Search Engine;元搜索引擎的智能化及其设计与实验
12.Research on Results Optimizing Technology of Meta Search Engine Based on Agent;基于Agent的元搜索引擎结果优化研究
13.The Research and Design of Metasearch Engine on Internet;Internet上元搜索引擎的研究与设计
14.System Design of Extensive Metasearch Engine (EMSE);扩展元搜索引擎(EMSE)的系统设计
15.A personal technology of Meta Search Engine based on Agent;一种个性化Agent元搜索引擎技术
16.Topic-Specific News Portal System Based on Meta Search基于元搜索技术的主题新闻门户系统
17.Research and Design of Meta Search Engine Based on Ontology基于本体的元搜索引擎的研究与设计
18.Crisis Information Monitoring System Based on Meta-search Engine基于元搜索引擎的危机信息监测系统
相关短句/例句

Meta-search元搜索
1.The research of meta-search data fusion based on semi-complete graph;基于半完全图在数据融合中的元搜索研究
2.Design and Realization of Education Assist System Based on Personalized Meta-search;基于个性化元搜索的教学辅助系统的设计与实现
3.Personalized meta-search engine model research;个性化元搜索引擎模型研究
3)metasearch元搜索
1.Library Oriented Metasearch Application;面向图书馆的元搜索工具及其应用
4)Search cell搜索单元
5)meta-search engine元搜索引擎
1.Internet information search field meta-search engine results selection strategy;信息检索中元搜索引擎结果选择策略
2.A framework model design for meta-search engine;一种元搜索引擎框架模型的设计
6)meta search engine元搜索引擎
1.Personalized scheduling algorithm based on user profile for meta search engine;元搜索引擎中基于用户兴趣的个性化调度模型
2.Improvement on clustering of meta search engine combining with association rules;结合关联规则的元搜索引擎结果聚类改进
延伸阅读

1-(3-Trifluoromethyl)trityl-1,2,4-triazole 再搜索CAS:31251-03-3 分子式:C22H16F3N3 分子质量:379.390 中文名称: 氟三唑;1-(3-三氟甲基)三苯甲基-1,2,4-三唑;三氟苯唑英文名称: 4-triazole, 1-(diphenyl-(3-(trifluoromethyl)phenyl)methyl)-1h-2;1-(diphenyl-(3-(trifluoromethyl)phenyl)methyl)-1h-1-2,4-triazole;4-triazole, 1-(alpha,alpha-diphenyl-m-(trifluoromethyl)benzyl)-1h-2;fluotrimazole;persulon;1-(3-Trifluoromethyl)trityl-1,2,4-triazole 再搜索 性质描述: 无色结晶固体。熔点132℃,20℃时的溶解度:水中为1.5mg/L,二氯甲烷中为40%。环已酮中为20%,甲苯中为10%,丙二醇中为50g/L。在0.1M(mol/L)氢氧化钠溶液中稳定,在0.2M硫酸中分解率为40%。生产方法: 以间溴代三氟甲苯为起始原料,经形成格氏试剂,后与二苯酮进行亲核加成,然后用氯化铵水解,制得3-三氟甲基三苯甲醇。然后继续与浓盐酸反应生成3-三氟甲基三苯基氯代甲烷,最后以三乙胺作缚酸剂,以N,N-二甲基甲酰胺为溶剂,在氮气保护下,与1,2,4-三唑反应则得氟三唑。(1)将镁屑4.8g和小粒碘放入反应瓶中,滴入含有间溴代三氟甲苯的无水乙醚溶液30ml(4.5g间溴代三氟甲苯溶于100ml无水乙醚中),在水浴上温热。在搅拌下缓慢滴入剩下的间溴代三氟甲苯无水乙醚溶液,加毕,回流30min后,蒸除乙醚,冷却,滴入含有二苯酮的苯液(36g二苯酮溶于150ml苯中)。滴加完后,加热回流2h,冷却,滴入含有40g氯化铵的水溶液,使产物分解,分离苯层,脱苯,脱水,减压蒸馏,收集180-184℃(0.08kPa)馏分。静置冷却,而得无色块状物,熔点50-52℃,即为3-三氟甲基三苯甲醇。(2)将3-三氟甲基三苯甲醇32g和苯15.6g,浓盐酸22g,一起振摇,直至块状物完全溶解。然后分去苯层,经干燥,脱苯而得浅黄色油状物,即为3-三氟甲基三苯基氯代甲烷。(3)将上述所得油状物34.6g,1,2,4-三唑7g,N,N-二甲基甲酰胺250ml和三乙胺11g,加入反应瓶中,在氮气保护下,加热至93-100℃反应3h。减压脱溶残留物用水洗涤,然后用二氯甲烷萃取。其萃取液,经干燥,蒸除二氯甲烷而得浅黄色固体。用丙酮重结晶而得氟三唑,熔点128-130℃。配制成50%可湿性粉剂,125g/L乳油。 用途: 氟三唑因含有氟原子,生物活性高,毒性降低,对黄瓜,大麦,葡萄等的白粉病的防治有特效。