海德格尔认为，现代科学建立在对世界的前科学、前理论的先验的筹划的基础上。
Heidegger posited that modern science was based on the priori schema of world's ante-science and ante-theory.
最近的证据支持了一个与长期存在的理论对立的观点，该理论认为，在1.1万至1.2万年前，美洲是由从白令海峡沿中大陆无冰走廊向南迁移的人殖民的。
Recent evidence favors a rival to the long-standing theory that the Americas were colonized 11,000-12,000 years ago by people migrating south from Beringia along a midcontinental ice-free corridor.
亚里士多德在公元前4世纪提出的一个理论认为，人是天生的模仿者——即从模仿他人、事物和行为和观看这些模仿中获得乐趣。
One, set forth by Aristotle in the fourth century B.C., sees humans as naturally imitative—as taking pleasure in imitating persons, things, and actions and in seeing such imitations.
他也应该知道，没有100年前第一代量子物理学家所奠定的理论基础，如今就不可能有黑莓。
He should know. The BlackBerry itself would be impossible without theoretical insights developed 100 years ago by the first quantum physicists.
理论物理学家将不得不回到在制图板前，用标准模型寻找其他可以解决问题的方法。
Theoretical physicists will have to go back to the drawing board and find an alternative way to solve the problems with the standard model.
另一种理论认为其它动物在震前能感觉到人类察觉不到的弱震。
Another theory holds that other animals can sense weak shocks before an earthquake that are imperceptible to humans.
拉格朗日拟序结构理论是10年前被乔治·霍勒（GeorgeHaller）揭开，他当时在罗德岛上的布朗大学任教。
The theory of Lagrangian coherent structures was started about ten years ago by George Haller, who was then at Brown University, in Rhode Island.
在五年多前，理论上已经被证实可行，但这才是它的首次实践运用。
It has been held out for more than 5 years as a promising technique in theory, but this is the first time it has been put into practice.
想象所谓的定量基金是否在作出决定前真正的应用了金融理论。
So-called quant funds (among the most profitable investment managers yet) truly employ financial theory when making their decisions.
专家说，理论上是安全的。但是这些肉必须煮熟，在你吃前必须杀死所有有害病原体。
In theory, yes, experts say. But the meat must be cooked, which will kill any noxious pathogens before you eat it.
在您开始导入并运行实际的代码前，让我来为您逐步地讲述一点点理论。
Before you start importing and running the actual code, let me walk you through a little bit of theory.
在三年前出版的一本有影响的著作“了解恐怖网络”中，他首次提出了他的理论。
He published the first version of his theory three years ago in an influential book, "Understanding Terror Networks".
“科学信念主要来自实验结果，但也是我们的理论家为工作，如果你喜欢，痛击掉所有的可能性，就像坐在一台打字机前的猴子，”他说。
"Scientific conviction comes primarily from experimental results, but it's also the job of us theorists to, if you like, bash out all the possibilities, like monkeys on a typewriter," he says.
当被问及他最喜欢他工作的哪一点时，这位前经济学教授说他最喜欢的是以前在理论上研究的东西现在可以用到实践中。
Asked what he liked most about his job, the former economics professor said that what he used to study in theory he now gets to put into practice.
这一公约在理论上是非常好的：这意味着在儿童被带走前，要进行合法地努力。
That is fine in theory: it means that legal battles have to be fought first, before a child is moved.
这影响虽然细微但非常关键，他们补充道 - 100年前，爱因斯坦在他伟大的重力理论-广义相对论中已经有了这样的预测。
The effect is tiny but crucial, they added – and was predicted almost 100 years ago by Albert Einstein in his great theory of gravity, general relativity.
致力于统一引力定律和量子力学的弦理论家很久前就作出了存在另一维度的推测。
String theorists, who seek to unify the laws of gravity with those of quantum mechanics, have long predicted the existence of extra dimensions.
光粒子是宇宙中速度最快的东西，所以一台光学计算机在理论上可以在计算机启动前就能处理完信息。
These particles of light are the fastest things in the universe, so an optical computer could theoretically process information at speeds that make even a supercomputer look glacial.
这一发现支持了200年前已被大部分学者否认的一个进化论流派：拉马克进化论。该理论认为后天习得的特征可被遗传给后代。
The findings provide support for a 200-year-old theory of evolution that has been largely dismissed: Lamarckian evolution, which states that acquired characteristics can be passed on to offspring.
在25年前，曾有人提出了一个很据争议的理论，认为这种恐龙的上颚有个肌腱和颅骨的其他部分连接。
A somewhat controversial theory had been proposed about 25 years ago suggesting such dinosaurs were equipped with a hinge between the upper jaw and the rest of the skull.
几周前突尼斯开始投票，理论上的选举也在埃及提上日程，利比亚终于干掉卡扎菲。
Tunisia went to the polls a few weeks ago, elections are still (in theory) scheduled in Egypt, and Libya has finally dealt with the Qaddafis.
而如果一个投资者在交食前卖出然后在交食结束后马上买入，理论上他将获得55倍的回报。
One who sold before each eclipse and bought back straight after would have multiplied the principal 55 times.
另外一个理论推测大型动物在13000年前的一次小行星撞击中被毁灭殆尽，然而最新的研究也否定了这种可能性。
Another theory, that the larger beasts were wiped out by an asteroid strike around 13, 000 years ago, also looks unlikely in view of the latest study.
现有理论认为在大约40亿年前，一个火星大小的天体撞击了原始地球，星球被装出的部分最终形成了现在的月球。
Current thinking is that some 4 billion years ago, a Mars-sized object smashed into the proto-Earth, knocking off a chunk of planet that eventually formed into the moon.
这个理论是卡迪夫大学（Cardiff University）教授比尔·内皮尔（Bill Napier）提出的，他说这个理论解释了大约公元前1.1万年时神秘的物种灭绝时期。
The theory is the brainchild of Professor Bill Napier, from Cardiff University, who says it explains the mysterious period of extinction around 11, 000 BC.
安然，一家能源公司、美国最臭名昭著商业欺诈案的主角，在倒闭前的5年里实际上缴的税款只有理论上需上缴税款的38%。
Enron, the energy firm that was America's most infamous corporate-fraud case, paid cash tax of only 38% of its theoretical charge in the five years before its demise.
安然，一家能源公司、美国最臭名昭著商业欺诈案的主角，在倒闭前的5年里实际上缴的税款只有理论上需上缴税款的38%。
Enron, the energy firm that was America's most infamous corporate-fraud case, paid cash tax of only 38% of its theoretical charge in the five years before its demise.
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