名词
中文翻译：屋顶木材
同义词：
['roofing timber', 'roof plywood', 'roof framing lumber']
例句：
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1. The contractors used the roof timber to reinforce the structure.
承包商使用屋顶木材来加固结构。
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2. The builders installed the roof timber before starting the interior work.
建筑工人在开始内部工作之前安装了屋顶木材。
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3. The roof timber was a crucial part of the building's structural integrity.
屋顶木材是建筑结构完整性的关键部分。