“义务植树”的概念、定义、翻译、参考文献-科学参考

单词	义务植树
释义	义务植树 Encyclopedia 工学公众参与释 Tree-plangting as an Obligatory Duty义务植树为造林绿化组织特定公民开展的植树种绿义务行为的一项运动。
随便看	convex closed curve convex closed set convex closure convex closure of a saddle function 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

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。