In this case, Uranium-Lead Dating was used to establish that half of the sandstone in the samples was formed at the same time the granite in the Appalachian Mountains was formed.

在这种情况下，铀铅定年法被用来确定样本中一半的砂岩是在阿巴拉契亚山脉花岗岩形成的同时形成的。

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Several times in Earth's history, rapid global warming occurred, apparently spurred by amplifying feedbacks. In each case, more than half of plant and animal species became extinct.

地球史上发生过几次迅速的全球变暖，均由扩大化的反馈作用引起，每一次，都有超过一半的动植物从地球上消失。

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However, the first chronic case took place half a century ago.

然而，第一个慢性中毒病例发生在半个世纪以前。

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The case later grew to include over one and a half million women who were current and former Wal-Mart workers.

VOA: special.2009.07.17

In fact, it took the same number of steps as it did in the other case, because each time I'm cutting it down by a half.

因为每次我都把问题的规模,缩小一半，这很棒，好，接下来让我们这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

This case, I reduced the size of the problem in half.

这很好的表明了这是，对数级复杂度的问题，我马上就要解释。

麻省理工公开课 - 计算机科学及编程导论课程节选

So thousands of juries will be presented half a case, in essence, with some issues like whether cigarettes are defective and dangerous beyond their ability to decide.

FORBES: After Losing In Florida, R.J. Reynolds Has Limited Options On Tobacco Cases

For unnecessary delays, defense lawyers would be fined up to half of the case fee, or barred from court.

CNN: Senator Fernan's 10-year crusade for speedy justice

Sometimes they had prayed together over the phone, in a kind of half code in case anybody accidentally picked up the extension.

NEWYORKER: Good People