| 单词 | magnetic material |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔magnetic mine〕A marine mine detonated by a mechanism that responds to a mass of magnetic material, such as the steel hull of a ship.磁性水雷：通过对一个磁性物体，例如船只的钢质船体起反应装置而引爆的一种水雷美国传统〔permanent magnet〕A piece of magnetic material that retains its magnetism after it is removed from a magnetic field.永久磁铁：从磁场移开之后仍保持其磁性的一块磁性材料美国传统 |
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