名词短语
中文翻译：框体部分
同义词：
['frame section', 'framed section', 'framed area', 'framed section under frame']
例句：
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1. Theengineer designed the box section under the frame to meet the structural requirements.
工程师设计了框体部分以满足结构要求。
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2.The construction of the new bridge required the installation of a box section under the frame.
新桥的建设需要安装一个框体部分在框架下。
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3.The engineer carefully measured and cut the box section under the frame to ensure its stability.
工程师仔细测量并切割框体部分以确保其稳定性。