In this thesis, firstly, introduce the topic's origin and background, the research significance, the researching scope and goal, point out the R&D process reengineering reason.
本文首先介绍选题的来源、背景和研究意义，指出论文的主要研究内容与目的，明确研发流程再造的动因。
This paper discusses the attraction between the origin and destination(O-D), the method of O-D distribution and its application.
本文对O-D分布方法中两结点间的相对吸引力和分布模型进行了探讨。
The algorithm is applicable to large-scale road network with many to many origin-destination and time-dependent O-D volumes. Simulation results prove the validity of both the model and the algorithm.
该算法适用于多起点、多讫点以及O-D量随时间变化路网的动态系统最优交通分配，仿真结果验证了算法的有效性。
Enter letter "D" in Box 8 for products which meet the special origin criteria according to Rule 10.
如果符合原产地规则第十条规定的特殊比例标准，则第8栏中填写字母“D”；
Turn the tendinous origin of the medial head of the gastrocnemius laterally to serve as a retractor for the popliteal vessels and nerves (Fig. 1-55, d).
术中可将腓肠肌内侧头的腱性起点向外翻转，形成对腘血管神经的保护(图1- 55d)。
Turn the tendinous origin of the medial head of the gastrocnemius laterally to serve as a retractor for the popliteal vessels and nerves (Fig. 1-55, d).
术中可将腓肠肌内侧头的腱性起点向外翻转，形成对腘血管神经的保护(图1- 55d)。
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