求翻译：任何可以获取材料和服务的渠道都有很多，其中由从事产品的设计、生产、加工、销售及后期使用维护等相关工作的商业实体构成的网络就是供应链经济[4]。供应链经济是这些商业实体之间构成的供应链之间的生产力、竞争力以及市场地位的统一体，这些商业实体在供应链经济中以一个统一的整体发挥作用。因此，供应链经济就是由相互关联的供应链构成的一个网络，供应链经济中的供应链之间相互作用就形成了链际竞争。是什么意思？

Channels have any access to materials and services, which a network of business entities engaged in product design, production, processing, sales and post-use maintenance and other related work is the supply chain economy [4]. Supply chain, economic productivity, competitiveness and market position

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Any may gain the material and the service channel all has very many, in which by is engaged in the product the design, the production, the processing, the sale and the later period uses correlation work and so on the maintenance commercial entity constitution networks supplies chain economy (4).The

Any access to materials and services are a lot, which is engaged in product design, production, processing, distribution and subsequent maintenance work, such as the network of commercial entities that supply chain economic [4]. SCM is formed between these business entities between supply chain prod

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