“IWHA”的概念、定义、翻译、参考文献-科学参考

单词	IWHA
释义	IWHA Encyclopedia 工学[水利史研究机构与组织]释 International Water History Association；IWHA国际水历史学会由联合国教科文组织和联合国政府间水理事会组建的国际学术组织。
随便看	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 positively stable solution positive manifold positive map positive mapping positive mass conjecture positive matrix positive measure positive metric positive/negative helicity spinors positive number

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。