名词中文翻译
中文翻译：主梁
同义词：
['mainstay', 'mainframe']
例句：
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1.The main beam of the bridge is visible from the road.
从马路上可以看到这座桥的主梁。
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2.The main beam of the building is made of steel.
这座建筑的主梁是用钢制成的。
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3. The main beam of the ship supports the entire structure.
船的主梁支撑着整个结构。