“河西地区农业史”的概念、定义、翻译、参考文献-科学参考

单词	河西地区农业史
释义	河西地区农业史 Encyclopedia 理学中国农业史释 agriculture history in Hexi region河西地区农业史中国黄河以西天然走廊地区的农业发展历史。
随便看	close binary system close collision close configuration close-confinement close coupling approximation close-coupling approximation close coupling calculation close-coupling calculation close cultivation of grassland close curve closed closed-and-open set closed-and-open subset closed and unbounded set closed and unbounded set; club set closed arc closed architecture closed ball closed base closed basin closed boundary closed-box model closed braid closed broken line closed card sorting

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。