由于靠近地核，地幔底部的岩石比上地幔岩石的温度高得多。
Because of its proximity to Earth's core, the rock at the base of the mantle is much hotter than rock in the upper mantle.
石英等硅酸盐向下漂移，在到达地核时与密度更大的物质混合。
Silicates such as mineral quartz drifted downward and mixed with denser materials as they reached Earth's core.
最后一次间冰期的抓地力所显示的剧烈气候波动在 GISP2 地核中没有出现。
The wild climate swings shown by GRIP in the last interglacial are not seen in the GISP2 core.
来自Vostok 地核的其他数据显示，甲烷气体也与温度和二氧化碳密切相关。
Other data from the Vostok core show that methane gas also correlates closely with temperature and carbon dioxide.
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 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.
这次任务目的是弄清楚月球从地壳到地核的组成，再根据这些信息重建月球的演化过程。
The goal of the mission is to figure out the composition of the moon from crust to core and use that information to reconstruct the evolution of the moon.
因为它通常以金属的状态存在，并且在地球的冷却和固结的过程中，会优先合并到地核中。
Because it usually exists in a metallic state, it was preferentially incorporated in Earth's core as the planet cooled and consolidated.
持续的轰击和内部压力使成长中的地球越来越热，导致其内部融化，较重的元素下沉形成地核。
Continued bombardments and internal pressures made the growing Earth hotter, causing its interior to melt and the heavier elements to sink and form Earth's core.
这些地幔柱显然起源于很深的地方，可能深至地核和地幔之间的边界，而且许多都已经活跃了很长时间。
The plumes apparently originate at great depths, perhaps as deep as the boundary between the core and the mantle, and many have been active for a very long time.
科学家们总是仔细、客观地核对各种说法，并进行实验来验证它们。
Scientists always check statements and make experiments carefully and objectively to verify them.
魔鬼塔是过去的遗迹，当时地核的熔岩涌向地表，形成了火山的咽喉。
Devils Tower is a relic of the past, when the molten rock of the earth's core forced its way to the surface to form the throat of a volcano.
所有板块都在缓慢移动，因为它们漂浮在密度更大的半流体地幔上，也就是地壳和地核之间的那一层。
All are slowly moving because the plates float on a denser sem-iliquid mantle, the layer between the crust and Earth's core.
所有板块都在缓慢移动，因为它们漂浮在密度更大的半液态地幔上，也就是地壳和地核之间的那一层。
All are slowly moving because the plates float on a denser semi-liquid mantle, the layer between the crust and Earth's core.
月球也可能如同地球一样有一个地核。
随着地核压力增加，大地震随之而来。
但这种影响向外扩散，逐层改变地核的自转速度。
But the effect ripples outward, changing the core's rate of rotation layer by layer.
地核可以储存60个，或者100个大洋的水。
地核中可能有巨量的氢（水分子的一种组分）或者完全干燥。
The core could be very, very rich in hydrogen (a water ingredient) or totally dry.
证据表明灶神星有着和地球一样被岩石地幔覆盖的镍铁地核。
The evidence suggests it has a nickel-iron core like the Earth's, overlain by a rocky mantle.
按一般标准衡量，地核是由相当致密的物质组成的。
Judge by ordinary standards, the core is made of rather dense stuff.
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。
In the textbooks of yore, the Earth's inner regions like the mantle and core were presented as simple, fairly homogeneous regions.
我们预料，但是我们不能确定，月球有一个由熔岩构成的地核，如同地球。
We think-but we are not sure-that the moon has a center core which includes molten rock, as the earth does.
有证据表明它的地核也象地球一样由镍、铁元素组成，表面由岩石地幔覆盖。
The evidence suggests it has a nickel-iron core like the Earth’s, overlain by a rocky mantle.
如此大的一颗行星，有岩石地核以及蓬松的气体层包覆，可能不会维持我们所知的生命。
Such a big planet with a rocky core and a fluffy gaseous envelope probably can't support life as we know it.
在有些情况下，数据没有被清除掉，而只是简单地核查它是有效的还是无效的。
In some cases, data is not sanitized, but instead simply checked as to whether it is valid or not.
在有些情况下，数据没有被清除掉，而只是简单地核查它是有效的还是无效的。
In some cases, data is not sanitized, but instead simply checked as to whether it is valid or not.
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