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2013-05-23 12:21
求翻译：Roof trusses are often used as part of an industrial building frame, such as the one shown in Fig. 3–2. Here, the roof load is transmitted to the truss at the joints by means of a series of purlins. The roof truss along with its supporting columns is termed a bent. Ordinarily, roof trusses are supported either by colum是什么意思？ 待解决
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Roof trusses are often used as part of an industrial building frame, such as the one shown in Fig. 3–2. Here, the roof load is transmitted to the truss at the joints by means of a series of purlins. The roof truss along with its supporting columns is termed a bent. Ordinarily, roof trusses are supported either by colum
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