制度是规则的集合，是一系列正式约束和非正式约束组成的规则网络。
Institution is the regulation aggregation, is a series of the regulation network that are composed of formal constraint and informal constraint.
市场制度的演化受到文化的直接的非正式约束和间接的强制性约束。
The change of market systems is subject to both direct informal and indirect compulsory restraints of culture.
工程质量监督制度由正式约束、非正式约束和实施机制三要素构成，在不同的监督阶段这三要素包含的内容有所不同。
Engineering quality supervision institution is constituted by three factors: formal constraints, informal constraints and enforcement mechanism, which are some different in above three stages.
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