硬币的光边；无纹边,即没有锯齿状纹路的平滑边缘。
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硬币的光边；无纹边,即没有锯齿状纹路的平滑边缘。；硬币的光边；无纹边,即没有锯齿状纹路的平滑边缘。
A smooth coin edge without reeding or corrugation.
The commemorative coin has a plain edge to distinguish it from regular circulation coins.
这枚纪念币采用光边,以区别于普通流通硬币。
硬币的光边；无纹边,即没有锯齿状纹路的平滑边缘。
A smooth coin edge without reeding or corrugation.
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Dictionary facts from AI_SUPPLEMENT.