名词
中文翻译：磁力石
同义词：
['magnet', 'magnetism']
例句：
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1.The servomagnet is a powerful tool for attracting and holding objects.
磁力石是一种强大的工具，用于吸引和保持物体。
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2. The servomagnet was used to create the magnetic field in the car.
磁力石被用来在汽车中产生磁场。
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3. The servomagnet was discovered by accident while studying the properties of magnets.
磁力石是在研究磁铁的性质时偶然发现的。