In the paper, emphasis was placed on roof grids based on orthotropic quadrangle pyramids with selected members drawn away used for the first time in a workshop.

本文着重探讨了工业厂房中首次采用的抽杆正交正放桁架式网架设计与施工中的一些问题。

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The original 1850s reading room remains at the centre of the quadrangle, with Foster's roof above it.

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