第二章分析了废弃物物流与GIS技术的理论基础，并对GIS技术在城市废弃物物流系统中的应用研究状况进行了分析。
The second chapter analyzed the theoretical foundation of the waste material logistics and gis technology. Then it analyzed the application method of gis in waste material logistics system.
本文在现代物流技术基础，特别是车辆调度和蚁群算法的基础理论指导下，针对现代物流运输车辆的调度优化问题，进行了理论、方法与模型的研究工作。
Based on the modern logistic technology, especially the vehicle scheduling and the ant algorithm theories, this paper make a research in theories, methods and models aiming at the present problems.
物流是一个系统性强、技术含量高、涉及面广、理论与实践结合紧密的专业。
The logistics has high technological content and closely combines theories with practice.
但与发达国家的差距比较明显，尤其是在物流理论及运作技术方面。
But compared with the west Developed countries, logistics developing in our country is more slowly, especially in the theory and technology of logistics.
但与发达国家的差距比较明显，尤其是在物流理论及运作技术方面。
But compared with the west Developed countries, logistics developing in our country is more slowly, especially in the theory and technology of logistics.
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