名词
中文翻译：Unknown
同义词：
['U-shaped iron', 'U-shaped steel']
例句：
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1.The U-iron beam is strong enough to support the weight of the roof.
U形铁梁足够强壮，能够支撑屋顶的重量。
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2. The engineer used U-iron to reinforce the foundation of the building.
工程师使用U形铁来加固建筑物的基础。
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3. The U-iron structure was designed to withstand heavy loads.
这种U形铁结构被设计用来承受重负载。