| 1. | The magnetic state of a bar magnet or a horseshoe magnet is extremely complicated .
条形磁铁或马蹄形磁铁的磁态是极其复杂的。 |
| 2. | If the bar magnet is simply held stationary near the coil, no current is indicated .
如果磁棒单纯静止在线圈附近，就检测不到电流。 |
| 3. | The form of the stable geomagnetic field is like that of a bar magnet at the center of the earth
稳定地磁场的形状与地球中心的棒磁铁的形状相似。 |
| 4. | To test the idea , one group of ten pigeons had strong little bar magnets attached to their backs
为验证这一看法，一组为十只的鸽子背上缚上了强力小磁棒。 |
| 5. | That shape , something like an apple sliced downward through its core , would be constant for a bar magnet
形状像苹果的向下穿过它的果核的心形薄切片,对条形磁铁来说磁线是恒定不变的。 |
| 6. | Because the core current is somewhat symmetrical around the axis of rotation , the associated magnetic field is similar to that of a bar magnet
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。 |
| 7. | A several of rubber bar magnet for dc micro - motor is discussed in this paper . and engineering tests is introduced which are needed in production of rubber bar magnets and micro - motors
摘要论述微型直流电动机中使用的橡塑磁条的特性，以及在磁条生产厂和电机制造过程需要进行的工程检验。 |
| 8. | Birds and compasses know north from south because , like a giant bar magnet , the earth ' s magnetic field has two poles that line up closely with the planet ' s axis of rotation
候鸟与指北针都知道何为北方、何为南方，因为地球就像一条巨型磁铁棒，它的磁场有两极，且这两个地磁的磁场线和地球的自转轴非常接近。 |
| 9. | We only observe the small portion of the magnetic field that extends to the surface and beyond , where its basic structure is a dipole that is , a simple north south field like that of a simple bar magnet
我们仅仅观察到扩展到地表和地表以外的磁场的一小部分，在这里它的基本结构是一个偶极子，就像一个简单的棒磁铁一样是一个简单的南北极磁场。 |
| 10. | This effect occurs because the magnetism in the material is generated by innumerable magnetic atoms , like a host of tiny bar magnets , all roughly aligned but randomly fluctuating like compass needles being jiggled about
这是因为材料的磁性是由无数个磁性原子所产生的，就像一群微小的块状磁铁，它们虽大致排齐但仍不规则，就像罗盘的指针一样不停晃动。 |
