postal convention
... a postal district邮政区 postal convention邮政公约 ,邮政专约 Postal code recognizer邮政编码识别机 ...
基于8个网页-相关网页
万国邮政公约 Universal Postal Union ; Universal Postal Convention ; Convention Postale Universelle
亚洲太平洋邮政公约 asian-pacific postal convention
因为根据万国邮政公约，邮票不得贴在明信片背面。
Because according to the International Postal Convention, it is not allowed to affix stamps on its back.
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