The mathematical model-Both ends, one principal line, both triangles , one terminal-in single item management is given here and the plan for its realization is also introduced.

本文给出了单项管理中“两头、一主线、两三角、一终点”的数学模型，并介绍了具体的实现方案。

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Thomas Vecchione, a principal with the company, was on hand to explain the process of converting the terminal into a modern, comfortable, efficient, environmentally sustainable facility.

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