This paper sets up a simplified physical model for viscoelastic pipe, on which a investigation on energy dissipation mechanism of it is presented and some new conclusions are given.

建立了挠性胶管阻尼耗能的简化模型。以此为基础分析了挠性胶管的阻尼耗能的一般规律，并得出了一些新的结论。

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On the other hand, if possible, a physical model to meet the product requirements, and according to the initial ratio of simplified, so that anyone can design and modeling of the correct evaluation.

另一方面，如果可能，一个物理模型以符合产品要求的方式，并且按初始比例简化，以便使任何人都能在设计和造型上做出正确的评价。

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Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering.

利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。

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