The new theory admits the Earth's inner core to be a ferromagnet. The ferromagnetism of inner core is supported by observed anisotropic property of inner core in transmitting seismic waves.
地球的内核是—磁铁，内核的铁磁性已被观察到的地震波速度各向异性所证实。
The formation of Earth's crust protected the inner layers of Earth from the high-energy particles in space, reducing the temperatures of the mantle and the core.
地壳的形成保护了地球的内层不受太空中高能粒子的影响，降低了地幔和地核的温度。
The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core; when surges in the molten iron occur, magnetic tempests are created.
地球磁场是由地球外核的熔铁围绕固体内核旋转而产生的；当铁水激增，就会发生磁暴。
In the textbooks of yore, the Earth's inner regions like the mantle and core were presented as simple, fairly homogeneous regions.
在以往的教科书中，地球的内部如地幔和地核被描述成简单而几乎相似的区域。
Because of the inner core of the earth, there will have two nutation modes related to the earth's rotation, i. e. a prograde free core nutation (PFCN) mode and a inner core wobble (ICW) mode.
由于内核的存在，将出现两个新的与地球自转有关的章动模式，即顺向的自由核章动(PFCN)和内核摆动(ICW)模式。
This paper is very importance to more studying theory of the inner core Earth's nutation, in view of influence of higher order moment of precession-nutation to the Earth rotation.
本文的理论对进一步研究在高阶岁差章动力矩作用下的内核地球章动是非常有意义的。
The Earth's solid inner core was formed by the freezing of iron rich liquid materials making up the outer core.
地球内核由外核富含铁元素的液态物质结晶而成。
The Earth's solid inner core was formed by the freezing of iron rich liquid materials making up the outer core.
地球内核由外核富含铁元素的液态物质结晶而成。
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