Abstract: : the engineering cost is always one of the main contents of construction project management in the construction industry, but also to focus on the economic interests of all parties.

摘要：工程造价一直以来都是建筑工程管理的主要内容之一，也是建筑行业中涉及有关各方经济利益的焦点。

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Engineering system is defined as a set of main construction structures in an engineering project.

“工程系统”指的是工程项目所包括的主要工程结构的集合。

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The research in the thesis is tightly combined with the practice of project, with the main emphasis on solving the Dalian Municipal Construction intelligent optical network engineering problems.

本论文的研究内容结合工程实际，主要侧重于解决大连市建设智能光网络的工程实际问题。

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