Interpromotion and interrestraint of the five elements, opposition and mutual basement of Yinyang, system science, natural phenomena and cultural phenomena are all governed by this theory.

五行生克制化、阴阳对立互根、系统科学、自然现象、人文天地无不隐含亢害承制这一自然规律。

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Relations among the five value elements compose value system of service product. This basic relationship in the value system mainly reflected at arrangement and relevance among five value elements.

以上五种价值要素构成了服务产品的价值体系，这种价值体系的基本关系主要表现在五种价值要素的层次性和关联性上。

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