以下为句子列表：
英文: Abstract: Based on the fundamental theory of computation of the cable-prestressed steel trusses established in paper［1］,the iterative perturbation formulas which inversively determine the stiffenesses of elements of steel trusses and cables with the restr
中文: 文摘:基于文［1］所建立的拉索式予应力钢桁架基本计算理论，根据矩阵摄动原理进一步给出了以竖向结点位移为约束反演确定任意布索张拉予应力钢桁架单元刚度和拉索刚度的摄动迭代公式。
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英文: Extremely strong load-transfer trusses inserted every 30 stories or so can isolate structural damage and avoid free-fall collapses.
中文: 每30层楼安装一个可以转移负重的坚固桁架，因此结构的破坏就会局限在一处，使大楼不致于全面崩塌。
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英文: Faced with building to an unprecedented height, architect Minoru Yamasaki and engineers John Skilling and Les Robertson employed rigid hollow tubesof closely spaced steel columns with floor trusses extended across to a central core.
中文: 由于面临着一个空前的建筑高度,建筑师山崎实与约翰·斯奇林和莱斯·罗伯逊等工程师采用了由密距钢柱构成的坚硬“空管”结构,并在其中的井道部分辅以地板桁架。
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英文: Reinforced concrete and special trusses have toughened large buildings, but mechanisms that actually reduce the shake from a quake are still relatively new.
中文: 钢筋混凝土和特殊的桁架已使大型建筑物更坚固，但真正能减轻大楼在地震时摇晃幅度的机械装置，倒是近来才出现的。
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英文: The trusses were special constructed to integrate a huge roller caster in one of the buildings.
中文: 桁架是为了公园内一座大楼的一个巨大的滚动教论所用。
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