The bar or cylinder of soft iron forming the central part of an electro-magnet, or of an induction coil.
| 单词 | θ77117 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > electromagnetic induction > [noun] > induction coil > central part of (1) core1849 The bar or cylinder of soft iron forming the central part of an electro-magnet, or of an induction coil. |
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