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

单词	commemorative stamp
释义	commemorative stamp Encyclopedia 工学邮资凭证释 commemorative stamp纪念邮票邮政部门为纪念重大事件、重要活动或人物而专门发行的邮票。是邮票票种之一，图案多以与事件、活动或人物有关的内容为题材，并有特定的纪念文字或徽志及年代，发行数量有一定限制，出售时间较短，一般不再重印。
随便看	frequency step frequency sweep mode frequency swept laser frequency switching frequency synchronization frequency synthesis frequency synthesized signal generator frequency synthesizer frequency table frequency theorem frequency theory frequency theory of probability frequency thermometer frequency transition frequency upconversion frequency value measurement frequency-varying induced polarization instrument Frequent Asked Questions，FAQ frequent blinking frequent cases related to property frequent flyer program frequentism probabilistic logic frequentit frequent itemsets frequently asked questions

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