In introducing gray programming and fuzzy linear programming into the scope of management project of construction machinery, various programming problems in engineering can be solved.

将灰色线性规划与模糊线性规划引入工程机械管理规划领域，可以基本解决工程实际中的各种规划问题。

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Combining purchase, plan, material and machinery management of Lidu Changjiang bridge, this paper presents the characteristic of cost control of the project.

本文结合李渡长江大桥施工过程中采购、方案及料机管理等方面的工作，阐述了项目成本控制方面的特点。

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Meanwhile, expect the program established in this study for other domestic engineering machinery enterprise customers marketing project management with reference.

同时，期望本文所建构的方案对于国内其他工程机械企业的大客户营销项目管理具有参考价值。

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