“post card”的概念、定义、翻译、参考文献-科学参考

单词	post card
释义	post card Encyclopedia 文学【声像印制】释 post card明信片一种书写兼视觉媒介，其信息传播主要通过邮政网络，是邮政传信时代典型的社会交往方式。
随便看	upper subsemilattice upper sum upper surface upper tangent arc upper topological limit upper transit upper triangular group upper triangular matrix upper-trimmed subsequence upper type upper unitriangular matrix upper urinary tract infection upper urinary tract lithiasis upper value upper variation Upper Volta upper water level for flood control Upper Xiajiadian Culture upper Yangtze platform Upper Yangtze River Rare and Endemic Fish National Nature Reserve Uppsala General Catalogue of Galaxies Uppsala University up-punching type up quark upright

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。