History is not just a study of the past.

历史不仅仅是对过去的研究。

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In theoretical study of the past, the use of too many similar and assumptions in analytical solution have to be verified the correctness.

以往理论研究使用了过多的近似和假设，得到的解析解的正确性有待验证。

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What are the factors lead to this phenomenon? Quantitative study of the past, mainly from the "urban experience", "Local Memory", "city expects," Analysis of the three dimensions.

那么导致这一现象出现的影响因素究竟是什么呢？以往的定量研究主要从“城市体验”、“乡土记忆”、“进城期望”三个维度来剖析的。

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She moved from butterflies to biochemistry, and her research over the past three decades has revolutionized the study of skin and skin diseases.

VOA: standard.2010.03.29

Furthermore it would seem that the study of the great books or great thinkers of the past can easily degenerate into a kind of antiquarianism into a sort of pedantry.

更甚之,研究这些巨著或,过往的伟大思想家,更可能轻易地降格为古物癖,或是卖弄学问。

耶鲁公开课 - 政治哲学导论课程节选

So a good bit of what we know about diet and health now comes from studies like The Nurses' Health Study, and in the past, from studies like The Framingham Study and The Seven Country Study.

我们现在知道的关于饮食与健康的知识,相当大一部分来自于像,护士健康研究这样的调查,而在过去则是来自像弗明汉研究和,七国研究这样的项目

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The study of the past doesn't yield unalterable laws that allow one to predict the future with the same certainty that a physicist can chart the trajectory and velocity of a falling object.

NPR: 'Folly of Empire' Offers Critique of U.S. Imperialism

This contains a study of the past two downturns in American retailing, in 1990-91 and 2000-01, which found that retail revenues were quick to fall and slow to recover, even once the economy started to pick up.

ECONOMIST: American retailing

Because light takes so long to reach the earth from distant galaxies, astronomers were able to study the value of alpha in light from the distant past.

ECONOMIST: Fundamental physics