The earth has an inner core that rotates clockwise and an outer core that rotates counterclockwise.
地球有一个内在核心以顺时针方向旋转,其外层核心是以逆时针方向旋转。
Changes in the thickness, viscosity and conductivity of the outer core in the past could have led to convection patterns that caused the magnetic pole to tilt.
过去任何来自于核外层的厚度、粘性和导电性变化都会导致对流形式变化从而引起磁极倾斜。
The outer core of the earth, being in the plasma state with high temperature, high pressure, high density, and immersed in a strong toroidal magnetic field, can support varieties of plasma waves.
地球外核处于高温、高压、高密度的等离子体状态,可以支持多种磁流体波的激发和传播。
It turned out that whatever the outer core is made of, it isn「t an iron-oxygen mix.
出现的结果是无论外核是什么造就的,但它不是铁和氧的混合。
The planet」s crust and mantle will suddenly shift, spinning around Earth「s liquid-iron outer core and sending cities crashing into the sea. (Interactive: pole shift theories illustrated.)
地球的地壳和地幔会遽然的移位,环绕地核外层的液态铁旋转,将都邑送入大海。(互动:轴心移位实际)。
The great bulk of the liquid outer core of the planet, of course, is made of molten iron.
这个星球的大块的液体外核,当然,由融化的铁构成。
At the centre of the Earth, below the mountains and the oceans and the thin, brittle crust, below the stony, slow-flowing mantle and the roiling outer core of liquid iron, is a solid inner core.
在地心,在山脉、海洋和稀薄脆弱的地壳下面,在由巖石圈构成的缓慢流动的地幔,和由滚滚的铁液态铁构成的外核下面,有一个固体内核。
Evidence indicates that the outer core is about twice as dense as the material in the mantle.
有证据表明,外地核的密度约为地幔物质的两倍。
The earth is a multi-layered rotating system, which is mainly made up of aerosphere, hydrosphere, lithosphere, mantle, outer core and inner core.
地球是一个多圈层的旋转系统,主要由大气圈、水圈、巖石圈、地幔、外核以及内核组成。
They also suspect a fluid outer core generates the planet」s magnetic field though convection.
他们还怀疑流体外核产生的磁场领域通过对流。
The innermost region of the Earth「s outer core periodically flows faster or slower, and this action 「tugs」 at the planet」s magnetic field, says Gillet.
地球外核最深区域呈阶段性快慢流动,这一行动「拽动」了地球磁场,吉莱说。
The outer core of the Earth, about two-thirds of the way to the center, is molten iron.
地球的地核外部,大致到达中心三分之二的地方是熔化的铁。
The outer core is believed to be composed mostly of iron and nickel in a molten state at a very high temperature.
有人认为外地核主要是由在高温下处于熔态的铁和镍构成的。