名词
中文翻译：主弹簧扣件
同义词：
['Mainspring', 'Spring', 'Catch piece']
例句：
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1.The mainspring of the clock is responsible for keeping it running.
钟的主弹簧负责使其运行。
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2.The spring in the car's suspension system needs to be adjusted regularly to maintain its performance.
汽车悬挂系统中的弹簧需要定期调整以保持其性能。
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3.The catch piece on the door handle prevents the door from closing too forcefully.
门把手上的扣件防止门关闭得过猛。