| 1. | The earth's core, at least the outer one is believed to consist of nickel and iron .
一般认为地核至少是外核由镍和铁构成。 |
| 2. | Another 15 hours to the inner core - outer core border
另加15小时到达内核和外核之间 |
| 3. | The inner core and the outer core
内核和外核 |
| 4. | The core of the earth is made up of a liquid outer core and a solid inner core
地核是由一个液体的外核和一个固体的内核组成的 |
| 5. | A large volume of electrically conducting fluid , the iron - rich liquid outer core of the earth , is the first of these conditions
第一要件，要有大量的导电流体地球的外核为液态，且富含铁质。 |
| 6. | The largest part of takes place because magnetic field lines are trapped in good electrical conductors such as the molten iron of the earth ' s outer core
发生磁场的再生是因为磁场曲线被限制在良好的电导体内，如地球外核的熔融铁。 |
| 7. | It consists of iron and nickel . the inner core is believed to be solid and the outer core is liquid . the major heat source of the core is the
，地核可细分为内外两层，内核相信由固体组成，外核则为液体，维持地热的能源主要来自地球内部的 |
| 8. | The variation must in a swimming pool will soon diffuse throughout the pool , a concentration of magnetic field lines diffuses throughout the planet ' s outer core
与游泳池中一滴有色的染料在池中迅速扩散的方式一样，一个浓缩的地磁场曲线的扩散遍布地球的外核。 |
| 9. | Indeed , it may be that such fluctuations are simply extreme examples of the continuum of fluctuations in the dynamo processes , an el niflo in the weather of the outer core
当然，其原因可能是如此大的波动只不过是发电机过程中波动连续体的极端例子，一个外核气候中的厄尔尼诺现象。 |
| 10. | So the rare field reversals are most likely caused by larger changes in the flow in the outer core , or in the way in which the field lines are wound into the flow by diffusion
这样，不经常发生的磁场倒转，很可能是由外核流体或磁场曲线通过扩散宛然进人流体方式发生较大的变化而引起的。 |
