An earthquake is a vibration that travels through the earth's crust.

地震是一种穿过地壳的震动。

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When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

当在边缘上的压力超过摩擦力时，能量通过地震以波的形式释放出来，穿过地壳造成我们所感觉到的震动。

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Geology is the study of the Earth's crust. We can understand the history of the Earth through this field.

地质学是对地球地壳的研究。我们可以通过此项领域来了解地球的历史。

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As luck would have it, a project called NOvA, which should start collecting data in the spring of 2013, will send neutrinos through the Earth's crust from Batavia to an underground detector 810km away in Minnesota.

ECONOMIST: The future of physics (1)