In this paper, we introduce the conception of project life cycle cost management and basic theory of value engineer.

引入工程项目全生命周期费用管理的概念，介绍了价值工程的基本原理。

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Under the whole life cycle theory, I think I study the design phase and bidding phase of the two key nodes in the project cost control.

笔者在全寿命周期理论的视角下主要研究决策设计阶段和招投标阶段两个关键节点的工程造价控制。

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With Regard to high cost of bridge maintenance currently, a modified bridge design theory which is based on the life cycle cost has attracted increasing attention gradually.

针对当前桥梁领域中服务期维护成本过高等现状，一种改良的桥梁设计理论—桥梁全寿命成本设计理论也逐渐开始为人们所关注。

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