“demonstration nature reserve”的概念、定义、翻译、参考文献-科学参考

单词	demonstration nature reserve
释义	demonstration nature reserve Encyclopedia 农学国家级自然保护区释 demonstration nature reserve示范自然保护区国家林业局于2006年中国自然保护区事业开创50周年之际，在中国林业系统选择的51个具有典型性、代表性的国家级自然保护区。这批自然保护区类型各异，主要保护对象为国内外高度关注的重点物种或生态系；权属清晰，建设与管理工作基础较好。
随便看	quadratic deviation quadratic diameter quadratic differential quadratic discriminatory analysis quadratic divergence quadratic domain quadratic dual quadratic dual problem quadratic dual space quadratic effect quadratic eigenvalue problem quadratic electro-optical tensor quadratic electrooptical tensor quadratic electro optic effect quadratic electro-optic effect quadratic element quadratic equation quadratic equation with one unknown quadratic error quadratic estimator quadratic expression quadratic extension quadratic extension field quadratic factoring method quadratic field

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。