Volatility in the article is the variance of asset return, which varies with time going, and this is also called heteroscedasticity in Econometrics.

本文所研究的这种波动性指的是资产收益的方差随时间不断变化，这在计量经济学中称之为异方差问题。

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It is also noticed that the seepage coefficient reduced with time going, the time for the coefficient to become a constant during the test was about 6 days.

试验中也发现垃圾土的渗透系数随时间而逐渐减小，大约6天左右趋于稳定。

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The microfauna community variety in MBR along with time going was investigated, and the indicative effect of microfauna on MBR operating was discussed meanwhile.

对MBR中微型动物群落结构随运行历程的变化进行了系统研究，并探讨了微型动物对MBR系统运行的指示作用。

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In fact most global automakers have signaled that they are going ahead with plans to open new factories in India at a time when many of them are facing a serious slump in their home countries.

VOA: standard.2009.03.13

But really, the computer's just so fast I'm drawing the same string with just a slightly different number again and again after going to sleep one second at a time.

但是真实地，这个计算机到现在为止,我一次又一次用稍微不同的数字,绘画了相同的字符串,在睡眠1秒钟之后。

哈佛公开课 - 计算机科学课程节选

By the time you get to the end of the term, you're going to be dealing with some fairly complex things, so one of the things you're going to see is, we're going to make heavy use of libraries, or code written by others.

当你临近期末的时候，你们将要解决一些,相当复杂的难题，因此你们将会看到的其中一点是，我们要充分利用图书馆，或者别人编写的代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

It seems to be occurring more frequently in the 1580 leads, particularly in the 8 French, and that with time we are going to see progression.

FORBES: Robert Hauser, ICD Watchdog, Offers Viewpoint On Riata Controversy At HRS

The UK High Street is going through a torrid time with several big names going into administration.

BBC: Blockbuster to close 164 more UK stores

Jensen held on for the silver in 14:45.29, the third fastest time ever, with the bronze going to Davies in a European record time of 14:45.95.

CNN: Records tumble at last day in pool