Understanding and grasping the "four control" as well as their relationship are very important to reach the basic target of "low cost, short construction period, high quality, and safety".

正确认识和把握“四大控制”及其之间的关系，对实现项目施工管理“成本低、工期短、质量高、安全好”的基本目标是极其重要的。

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Control production cost, improve production quality to achieve annual cost quality target.

控制生产成本，提高产品质量以达到年度质量目标。

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