名词
中文翻译：自推进力框架
同义词：
['self-propelled vehicle', 'self-propelled structure']
例句：
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1. The self-propelled power frame is a crucial component in the construction of bridges.
自推进力框架是桥梁建造中的关键组成部分。
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2.The self-propelled power frame has greatly improved the efficiency of the transportation system.
自推进力框架大大提高了交通运输系统的效率。
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3.The self-propelled power frame is designed to be lightweight and compact, making it ideal for use in urban areas.
自推进力框架设计为轻便且紧凑，非常适合用于城市使用。