中间层顶后是热成层，它是因为这里的高温而得名的。

The next layer in the atmosphere is thethermosphere named for its high temperature.

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利用二阶效应等效的原则，提出将中间层荷载等效为柱顶荷载的近似折减方法，提出结构稳定承载力的近似公式。

Making use of equivalent principle of second order effect, the load on middle stories is converted into that at top and the approximate formula for the critical load of the system is suggested.

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中间层具有第一和第二侧，该第二侧固定到靠近该中间层第二侧的底层的顶表面。

A middle layer having a first and second side is secured to the top surface of the bottom layer adjacent the middle layer's second side.

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