名词短语中文翻译
中文翻译：永久磁铁聚焦
同义词：
['永久磁铁聚焦例句：1. The permanent magnet is used to focus the light beam.（永久磁铁用于聚焦光束。）2. The permanent magnet is a crucial component in many electronic devices.（永久磁铁是许多电子设备中的关键部件。）']
例句：
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1. The permanent magnet is used to focus the light beam.
永久磁铁用于聚焦光束。
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2. The permanent magnet is a crucial component in many electronic devices.
永久磁铁是许多电子设备中的关键部件。
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3. The permanent magnet is used to create a strong magnetic field.
永久磁铁用于产生强磁场。