The deep connotation of the beauty of a city plaza is the perfect interaction of the environment and the social behaviors.

城市广场美的深层内涵就在于场所环境和社会行为的完美互动。

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In perfect competition, the price in the market is set by the interaction of demand and supply.

在完全竞争市场，价格由需求和供给的相互作用来确定。

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For the complexion of interaction of every component and the material non-linear, there is no perfect model of the rail system until now.

各个部分之间的相互作用的复杂性、材料性能的非线性，使轨道系统至今仍然没有较为完善的计算模型。

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Newly programmed engine electronics coordinate the perfect interaction of all new components and ensures not only maximum power yield but also exemplary low emissions that meet the latest emission limits.

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But this overhaul, sparked by a small team that developed and pushed for the new interaction model, a model with profound impact, is a perfect example of a big company being able to see, appreciate, and embrace creativity when they see it, and from wherever it might emanate.

FORBES: What Does Creativity Look Like in Branding These Days? Three Marketing Pros Weigh In.