参与者消除了从他们自己的预算购买新的软件和硬件的需求，因为那些软硬件已就绪；而且消除了软件和硬件的维护成本。

Participants eliminated the need to buy new hardware and software from their own budgets and, where they were already in place, eliminated maintenance costs for both.

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论文从成本控制理论入手，分析了公路建设成本对公路建设各个参与主体的影响，并介绍了当前控制建设成本的有效方法。

Begin with the theory of cost control, this Paper have analyzed the influence of highway construction cost to each participates, and have introduced the effective method of control cost in current.

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