“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	typical fiber typical geological section typical geological structure typical hydrologic year typicality typicality in literature typical links of control systems typically real function typical mean typical nova typical operation profiles flight test typical period typical representation typical retention curve typical sampling typical scenery typical scenery planning typical sequence typical spiral galaxy typical star typical steppe ecosystem typical stroke typical system typical system of force typical transformation

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。