名词
中文翻译：主要压力
同义词：
['major stress', 'principal stress']
例句：
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1.The engineer calculated the main stress in the beam to be 20% of its weight.
工程师计算梁的主要应力为其重量的20%。
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2.During earthquakes, the main stress is often concentrated at the epicenter.
地震时，主要应力通常集中在震中。
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3. The construction company was under a lot of main stress due to the project's tight schedule.
由于项目进度紧张，建筑公司承受了相当大的主要压力。