“the first US government portal”的概念、定义、翻译、参考文献-科学参考

单词	the first US government portal
释义	the first US government portal Encyclopedia 管理学﹝国家政府门户网站﹞释 the first US government portal美国第一政府门户网站美国政府为介绍美国国家政策、国家公共信息的官方网站。又称美国政府门户网站。
随便看	positive kernel positive kurtosis positive leap second positive lens Positive likelihood ratio positive limit point positive limit set positive linear functional positive linear operator positive link positive literal positive logic positive logical calculus positive logical formula positive lossless storage positively definite positively definite form positively definite kernel positively definite matrix positively definite quadratic form positively graded module positively invariant subspace positively oriented base positively semi-definite positively stable point

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。