名词中文翻译1
中文翻译：Unknown
同义词：
['beam', 'truss member']
例句：
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1. The house is built on a square foundation with purlins running through it.
这所房子建在一个方形的地基上，桁木穿过它。
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2. The roof of the barn was reinforced with purlins to hold up the weight of the snow.
谷仓的屋顶加固了桁木，以承受积雪的重量。
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3. The engineer used purlins to support the weight of the building.
工程师使用桁木来支撑建筑物的重量。