“multiple cropping index”的概念、定义、翻译、参考文献-科学参考

单词	multiple cropping index
释义	multiple cropping index Encyclopedia 管理学农作物播种面积释 multiple cropping index复种指数反映耕地利用程度的指标。
随便看	convex closure of a saddle-function convex closure of saddle function convex combination convex-compact mapping convex-complex space convex-concave convex concave function convex-concave function convex-concave mapping convex cone convex constraint condition convex cooperative game convex core convex curve convex decomposition convex domain convex down convex down curve convex duality convex equivalence relation convex extension convex figure convex figure of constant width convex function convex functional

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。