“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	group velocity group velocity control method, GVC method group velocity dispersion group velocity mismatch Group VIII B element Group VIII element group von Neumann algebra groupware group with a (B,N)-pair group with a decreasing filtration group with a domain of operators group with a finiteness condition group with an increasing filtration group with a pairing group with a ring of operators group with a semigroup of operators group with center group with multiple operators group with operators group without center group without radical group without torsion group with respect to addition group with respect to a form group with respect to multiplication

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