“集邮纪念戳”的概念、定义、翻译、参考文献-科学参考

单词	集邮纪念戳
释义	集邮纪念戳 Encyclopedia 工学集邮品释 philately commemorative postmark集邮纪念戳为纪念与集邮目的而刻制使用的专门戳记。包含两类性质完全不同的戳与章：一类是纪念邮戳，一类是纪念印章。
随便看	straight-line linkage straight-line method straight line motion straight-line representation straight-line segment straightness straightness artefact straightness measurement straight photography straight pile position survey straight polyomino straight ramp development straight river Straight Road of Qin Dynasty straight shock wave straight space straight spectrum straight tail straight-tube-type pneumatic dryer straight wall strain strain ageing strain aging strain annealing strain-based design

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。