postage certificate中文什么意思

邮资凭证

• postage:    n. 邮费。 postage due ...
• certificate:    n. 1.证明书；执照，凭照；(毕业 ...
• airmail postage:    航空邮费

例句与用法

1. Article 18 . postage certificates sold shall not be cashed in postal enterprises or their branch offices
   第十八条售出的邮资凭证不得向邮政企业及其分支机构兑换现金。
2. Article 16 . the payment of postage on various postal materials shall be indicated by postage certificates or by postmarks showing postage paid
   第十六条各类邮件资费的交付，以邮资凭证或者证明邮资已付的戳记表示。