“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	quantization of orbits quantization of perturbation quantization of radiation quantization of radiation field quantization of the gravitational field quantize quantized quantized conductance quantized contact transformation quantized control system quantized coordinate algebra quantized enveloping algebra quantized feedback quantized field quantized field theory quantized filtering quantized function algebra quantized universal enveloping algebra quantized vortex line quantizer quantizing quantizing noise quantometer quantum quantum abstract machine

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