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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Single-item or small batch production enterprises usually adopt project management method to organize production, because their products are very difficult to be planned and controlled.

在单件、小批生产类型企业中，由于其产品具有一次性、技术含量高、重复率低、难以计划与控制等特点，因此通常采用项目管理方式组织生产。

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Single-item or small batch production enterprises usually adopt project management method to organize production, because their products are very difficult to be planned and controlled.

在单件、小批生产类型企业中，由于其产品具有一次性、技术含量高、重复率低、难以计划与控制等特点，因此通常采用项目管理方式组织生产。

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