One way of doing this is to analyse first one frame of film and then the next, and calculate an average of the two.

解决这个问题的方法之一是，首先分析胶片的第一帧，然后是下一帧，接着计算这两帧的平均。

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The next solar maximum will occur in the 2012-2014 time frame and is predicted to be an average solar cycle, no different than previous cycles throughout history.

下一次太阳风暴高峰会在2012 - 2014年之间，并且它被预测为一次普通的太阳活动周期，和整个历史上的其它太阳周期没有任何不同。

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By the age of three to four years, on average, the brain is capable of acquiring language and of having thoughts that require language to frame them.

平均年龄到了三四岁，大脑有了获取语言和产生思想的能力，需要语言去建构之。

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They even put a number on it, saying that living in less dense communities--and two-thirds of the U.S. is comprised of such communities-- adds six pounds to the average frame.

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The program required more reading than the average graduate student had to complete in a similar time frame.

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