名词
中文翻译：磁芯
同义词：
['magnetic material', 'magnetic core material']
例句：
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1. The new device has a magnetic core that can be easily removed for maintenance.
这个新设备有一个可以轻易拆卸的磁性核心，便于维护。
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2. The magnetic core of the transformer is responsible for converting electrical energy into mechanical energy.
变压器的磁性核心负责将电能转换为机械能。
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3.The magnetic core of the motor is crucial for its performance and efficiency.
电机的磁性核心对其性能和效率至关重要。