“风景日戳”的概念、定义、翻译、参考文献-科学参考

单词	风景日戳
释义	风景日戳 Encyclopedia 工学集邮品释 landscape datemark风景日戳由风景名胜或纪念地所在地邮局使用的、刻有当地景观图案的邮戳。
随便看	convertible merger evaluation convertible signature convertibly convertin convertion compound convertor convex convex algebra convex analysis convex angle convex arc convex body convex-body theorem convex broken line convex cell convex circled set 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

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。