Thus, rationally deciding time limit standard for mail transmission has become the first problem mutually cared by post enterprises and consumers.
因此，合理确定邮件的传递时限标准，也就成为邮政企业和用户共同关心的首要问题。
Based on summary and analysis of the actual conditions of post enterprises, this paper proposes two models of making time limit standard for mail transmission.
本文从总结和分析邮政企业的实际情况出发，探讨了制定邮件传递时限标准的两种模式。
Then, the divide standard of damage grade and the enduring fire limit time of the tunnel lining caused by fire accident are discussed.
在此基础上提出了隧道衬砌火灾损伤等级的划分标准与耐火极限时间。
应用推荐