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| 1. | Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic |
| 因为地核流在旋转轴周围存在着一些对称，所以相关的磁场与棒磁铁的磁场相似。 |
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| 2. | Having a bilaterally symmetrical corolla somewhat resembling a butterfly, characteristic of most plants |
| 有蝶形花冠的，蝶形的有蝴蝶似的左右对称花冠的，是大部分豆科植物所具有的特点 |
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