名词
中文翻译：底部滚装组件
同义词：
['bottom-mounted assembly', 'bottom-mounting assembly']
例句：
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1. The engineer designed the new carwith a bottom roll assembly that improvesfuel efficiency.
工程师设计了这款新汽车，采用了底部滚装组件，提高了燃油效率。
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2. The assembly line was designed to efficientlyproduce multiple components for the vehicle.
装配线被设计成高效地为车辆生产多个部件。
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3. The bottom roll assembly is crucial forensuring the smooth operation of the vehicle's suspension system.
底部滚装组件对于确保车辆悬挂系统的平稳运行至关重要。