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。
Because of the time, conditions, sources of information and my ability limit, such as each model lacking of the data validation and detailed case analysis and so on.
由于时间、条件和资料来源、本人能力的限制，如：各种模型的数据校验欠缺、缺乏较详细的案例分析等。
The midterm contains topics from decision analysis and machine learning. There will be a strict time limit of 1.5 h.
期中考包含决策分析与机器学习两主题，将会有时间限制1.5小时。
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