设计是控制工程造价的关键。

Designing is the hinge in the control of project cost.

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技术与经济相结合是控制工程造价的最有效手段。

Technology and economic integration of project cost control is the most effective means.

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为完整而有效地控制工程造价，应对影响工程造价的三个阶段实施全过程控制。

For whole and effective controlling engineering cost it is needful to implement all process control to three sections of influence engineering cost.

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