名词中文翻译
中文翻译：分段底架
同义词：
['segmented underframe', 'segmented frame', 'sectional frame']
例句：
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1. Thenew model car has a sectional underframe that is designed to improve fuel efficiency.
这款新车采用了分段底架设计，旨在提高燃油效率。
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2. The construction of the bridge required the installation of a sectional underframe to support its weight.
建造这座桥需要安装分段底架来支撑其重量。
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3.The engineer used a sectional underframe to reinforce the weak spot in the structure.
工程师使用分段底架加固了结构中的薄弱部分。