地核

It may be that the core of our planet is unchanged as a result of life; but it would be unwise to assume it, Lovelock said.

或许是由于地核不因生命而改变的缘故；但作此假定可能是不智的，洛夫洛克如此说。

The lowery cloud covered the sky, and the sea was dark. It was only well-illuminated in the center of earth, and there the blazing core was rolling, completing its final figure.

乌云遮蔽了天空，大海一片阴暗，只有在地心的最深处，才是通明的，炽热的地核在翻滚着，完成它最后的形体。

At this time such tones are already available in the molten lava and magma of Earth's core.

此刻，这类音调已在地核中的熔浆中可得。

So, why is it important to know how the earth's inner core affects magnetic fields?

因此， 了解地核如何影响磁场为什么是重要的？

The earth consists of two parts, a core and a mantle.

地球的内部由两部分组成：地核和地幔。

"The really surprising thing is how fast the core is moving," Richards said.

"真正令人惊讶的事情是地核是如何快速移动的，"理查德说。

On the basis of the coupling between the core and mantle, the decadal fluctuation in the Earth's rotation is discussed.

从地核—地幔之间的耦合出发，讨论了地球自转十年尺度的波动问题，简述了核幔之间电磁耦合、粘滞耦合和地形耦合对十年尺度波动影响的基本理论。

A very complicated mantle mineral group including the native iron and wustite assemblage was recently discovered in chromitites from the mantle harzburgite of Luobusa ophiolite, Tibet.

笔者在西藏蛇绿岩的铬铁矿石中发现了十分复杂的地幔矿物群，其中包括自然铁-方铁矿的共生组合，它们被认为是外地核和下地幔的物质通过地幔柱作用携带到上地幔的。

It is 2900 kilometers thick and encompasses about 84% of the total volume of the earth.

地幔是从地核外边延伸至地表的部分，有2900公里厚，占到了地球的84%。

At first there is a vibration of sorts, a jiggling, as the crust separates in various places from the core.

一开始，当地壳和地核之间从各种地方分离时，会产生各种振动和摇动（因各地地质情况不同，振动的类型也不同）。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。