"Three element - rings" is a kind of thinking mode to cognize and manage food enterprises.
前言：“三元环”是认识和管理食品企业的一种思维方法。
The contents of "Three element - rings" are the service contents, service targets and service approaches respectively.
组成“三元环”的三元素为服务内容、服务对象和服务手段。
The contents of "Three element - rings" are the service contents, service targets and service approaches respectively.
组成“三元环”的三元素为服务内容、服务对象和服务手段。
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