时差N小时:地幔的奥秘(上)
日期:2015-02-11 16:26

(单词翻译:单击)

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For some time now, scientists have understood that the earth's crust is divided into plates that move about at the rate of a few inches a year.

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现在科学家们已经搞清楚地壳分为各个板块,而且板块间以每年几英寸的速度移动着18=RFh6*bZ

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But over time, form mountain ranges and volcanoes.

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但随着时间的推移山脉和火山得以形成+2|va4Pee5!8y+Gi]8D

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They have also known that the earth's mantle, the layer between the earth's crust and core, was the major player in the movement of the plates.

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他们也已经搞清楚地球的地幔,就是地壳和核心之间的那层是板块运动的主要参与者#Q(NWqrh9XZ

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Scientists talk about the mantle as a kind of weather system.

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科学家认为地幔是一种天气系统m|fkD.3hod

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There are cooler and warmer sections of the mantle that are in constant flux with one another, much like gathering storm clouds.

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地幔部分持续的流动有冷却器和温暖,就像风暴云聚集一样k-#G&TQnf3+zX#%i@

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These subterranean storms miles below the earth's surface, though very slow in development, can eventually exert powerful force on the earth's crust.

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这些地下风暴低于地球表面,虽然发展非常缓慢,最终会对地壳产生强大的力量6#o_PI(w.9VO52lZn6

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重点单词
  • movementn. 活动,运动,移动,[音]乐章
  • subterraneanadj. 地下的,隐蔽的
  • constantadj. 经常的,不变的 n. 常数,恒量
  • layern. 层 vi. 分层 vt. 将某物堆积成层 n
  • coren. 果心,核心,要点 vt. 挖去果核
  • exertvt. 运用,施加(压力,影响等)
  • eventuallyadv. 终于,最后