名词中文翻译
中文翻译：有脊梁的桁架梁
同义词：
['ridged beam', 'ridgedgirder']
例句：
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1. The roof of the house is supportedby a series of ridged purlins.
这所房子的屋顶由一系列有脊梁的桁架梁支撑。
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2.The engineer used a ridged purlin to reinforce the structure.
工程师使用有脊梁的桁架梁来加固结构。
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3.The construction crew was working on installingridged purlins in the newbuilding.
建筑工人正在安装新建筑中的有脊梁的桁架梁。