名词
中文翻译：西半圆梁
同义词：
['western half beam', 'western half beam']
例句：
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1.The west hemi beam is the main support for the roof.
西半圆梁是屋顶的主要支撑。
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2. The beam was used to connect the two halves of the bridge.
这个梁用来连接桥梁的两部分。
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3. The beam was too weak to hold the weight of the building.
这个梁太弱，承受不了建筑的重量。