Electronic stamp is the final embodiment of E-Postage service, the security of stamp is key guarantee for the E-Postage system.
邮资凭证是电子邮资系统服务的最终体现，邮资凭证的安全是保证电子邮资系统正常运转的重点。
Electronic stamp is the final embodiment of E-Postage service, the security of stamp is key guarantee for the E-Postage system.
邮资凭证是电子邮资系统服务的最终体现，邮资凭证的安全是保证电子邮资系统正常运转的重点。
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