“philately commemorative postmark”的概念、定义、翻译、参考文献-科学参考

单词	philately commemorative postmark
释义	philately commemorative postmark 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	Chronicles of Deeds of Ming Emperor Zhu Yuanzhang in his 25th Year of Reign Chronicles of Guangzhou Prefecture Chronicles of Song Dynasty Chronicles of the Jianyan and Chunxi Eras of the Imperial Song Chronicles of the Later Shu Dynasty Chronicles of the Song Dynasty Chronicles of the States in the Eastern Zhou Dynasty chronic leukemia chronic lymphocytic gastritis chronic lymphocytic leukemia chronic lymphocytic thyroiditis chronic mesenteric ischemia chronic myelogenous leukemia chronic myelomonocytic leukaemia chronic non-atrophic gastritis chronic non-communicable disease surveillance chronic obstructive pulmonary disease chronic obstructive pulmonary disease in equine chronic pain chronic pancreatitis chronic periodontitis chronic pharyngitis chronic poisoning chronic prostatitis chronic pulpitis

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。