The value norm is not only the abstract form of the meaning and order of social life, but also the restrained condition of social resource control and interest distribution.
价值规范既是社会生活意义与秩序的表现形式，又是社会资源控制和利益分配的约束条件。
Remanufacturing engineering is a form for end-of-life product resource Recover.
再制造工程是一种末端产品的资源化利用方式。
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