“portal search engine”的概念、定义、翻译、参考文献-科学参考

单词	portal search engine
释义	portal search engine Encyclopedia 管理学门户式搜索引擎释 portal search engine门户式搜索引擎在门户网站中使用的，通常仅有搜索引擎的界面，并没有一般搜索引擎所具有的爬虫程序、数据库和检索系统，也没有目录式搜索引擎的分类目录，但是通过优化设计，可调用其他独立的搜索引擎数据的搜索引擎。
随便看	Prefaces and Postscripts on Paintings by Yanzhou Shanren Prefaces and Postscripts on Paintings of Zheng Xie Preface to Analytical Dictionary of Characters preface to Buddhist scripture Preface to Clear Discrimination of Literary Form Preface to Cromwell Preface to Discrimination of Essay Form Preface to Huainanzi Preface to Li Yuan Retreats to Pangu by Shen Du Preface to Mencius Preface to Modern Library Preface to Mr.Liu Haifeng's 80th Birthday Preface to the Annotations of the Mohist Dialectical Chapters Preface to the Book of Documents Preface to the Book of Songs Preface to the Classic of Poetry Preface to the Collection of Inscriptional Writings preface to the first issue Preface to the Japanese Translation of Selected Yuan Zaju Plays Preface to the Orchid Pavilion Collection Preface to the Sixty Quatrains on Calligraphy prefactor prefeasibility study prefeasibility study for concentrator projects prefeasibility study of wind power projects

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。