“常见杂草”的概念、定义、翻译、参考文献-科学参考

单词	常见杂草
释义	常见杂草 Encyclopedia 农学〔危害性的杂草分类〕释 common weed常见杂草发生频率较高，分布范围较为广泛，可对作物构成一定危害，但群体数量不大，一般不会形成优势的杂草。
随便看	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 closed category closed cell closed chain closed channel closed circuit hydraulic system closed circular DNA closed circulating water system closed class closed combinatorial surface

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。