名词
中文翻译：磁铁
同义词：
['magnet', 'magnetize']
例句：
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1.The magnetizer is a device that can attract iron objects.
磁铁是一种可以吸引铁质物体的设备。
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2.The magnetizer was used to create a permanent magnetic field.
磁铁被用来创造一个永久的磁场。
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3. The magnetizer was used to test the strength of the magnetic field.
磁铁被用来测试磁场的强度。