The main task of conceptual design is the generation and selection of design concept, it contains the most creative jobs of design, it is the most important phase of product development circle.
概念设计的主要任务是设计概念的产生和选择，它包含了设计中的大部分创造工作，是产品开发过程中最重要的环节之一。
Phase plan, which is the main part of the task in marshalling station has obvious shortcoming in its obtaining way by the means of traditional method.
阶段计划是编组站作业计划的核心部分，传统手工编制方法的弊端日趋明显。
How to solve the problem reasonably and make the dispose of graduate human resource get to an optimized phase is the main task of the thesis.
如何合理地解决这一问题，使毕业生人力资源达到一定程度的优化配置是本文主要解决的问题。
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