| 1. | It ' s where we get our magnetic north pole and south pole ,
正因如此才形成了磁场的南北极 |
| 2. | Normally it points toward magnetic north
正常地它指向磁北极。 |
| 3. | In 1988 , at the age of 50 , she became the first woman to travel alone to the magnetic north pole
一九八八年，她以五十岁之龄，成为全球第一位只身走访磁北极的女性。 |
| 4. | In fact , the difference between the directions of celestial and magnetic north depends on the position of the observer
天球的北和指南针所指示的磁北并不相同。而且其夹角会因地点不同而相异。 |
| 5. | The magnetic north and south poles have shifted before in the course of the planet ' s history - one result being the last ice age
在地球的历史进程中地磁北极和磁南极已经转换过-一种结果就是最后的冰河时期。 |
| 6. | For starters , the core ' s motion could help explain why magnetic north and south periodically wander or reverse over earth ' s history
就像起动器一样，地核的运动有助于解释南北磁极周期性变换或历史上地球磁极的翻转原因。 |
| 7. | Driven by propellers , microhunters navigate in three dimensions by homing in on light sources , depth , pressure or a direction ? magnetic north , for example
小猎人便以螺旋桨推动，在三度空间都可利用光源、深度、压力、地磁作为方向的引导。 |
| 8. | Leslie dang , da liang and thomas carrier are taking part in the 2008 polar challenge . a 500km ski race to the magnetic north pole
戴丝莉,大梁和高凯利参加“ 2008极地挑战” .这是在北极举行的团体赛事，选手们要跋涉350英里到达1996年勘定的地磁北极。 |
| 9. | The two sunspots of a pair have different polarities , one would be a magnetic north and the other is a magnetic south . thus , we believe that there are magnetic field lines joining the two sunspots of a pair . the strong magnetic field locks the gas of the photosphere in places and inhibits the hotter gas below to rise at the sunspots
黑子经常成双成对出现，每对皆由极性相反的黑子组成，若一个为磁北，另一个必为磁南，由此我们估计每对黑子皆由磁力线所连系，强大的磁场牵制著光球层上的气体，并阻止了下层较炽热的气体上升至黑子范围，结果黑子比太阳表面其他地方温度较低。 |
