名词中文翻译
中文翻译：替代梁
同义词：
['substitute beam', 'substitute beam member']
例句：
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1. The engineer used a substitute beam to replace the damaged one.
工程师用一个替代的梁来替换损坏的梁。
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2. The beam was too old and needed to be replaced with a new one.
这个梁太旧了，需要用一个新的来替换。
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3. The beam supports the weight of the building and prevents it from collapsing.
这个梁支撑着建筑物的重量，防止它倒塌。