物流是一门系统性、操作性很强的学科,也是一门新的、正在快速发展的学科。从物流运作的角度看,现代物流包括企业物流(企业内部物流和企业外部物流)和社会物流(专门从事物流服务的第三方物流)两大部分。对于企业内部物流,包括原材料、能源、配件、工具等的采购、储存保管、半成 Logistics is a systematic and highly operational discipline, as well as a new and rapidly developing discipline. From the point of view of logistics operation, modern logistics includes two parts: enterprise logistics (internal logistics and external logistics) and social logistics (third-party logistics specializing in logistics). For the internal logistics, including raw materials, energy, accessories, tools, procurement, storage, semi-finished