The average speed for errors was 4 meters per second.

产生误差的平均速度是每秒4米。

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Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half.

有研究表明，在道路上画上笔直的横杆，可以在开始将司机的平均速度降低一半。

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And I will show you now what is the average speed between time zero and four.

现在我要给你们看的是，0到4秒间的，平均速率。

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For example, if we're talking about a pitcher, like Matsuzaka, we might want to know the speed of his average fastball.

举例来说，如果我们谈到一个投手，就像松阪，我们想知道他投出,快球的平均速度。

麻省理工公开课 - 化学原理课程节选

This is very important,which is why I am doing it: "If we want to know how fast a human being can run, then it is no use to average out the speed of a "good sample" of the population; it is far better to collect Olympic gold medal winners and see how well they can do.

这话非常重要，是我作这个研究的原因：,“如果想知道人类最快能跑多快，那从好的样本中测出平均数是“,没用的;,而应该收集田径类奥运冠军的信息,看他们能跑多快。

哈佛公开课 - 幸福课课程节选

Despite the yellow flags, the average speed was 187.433 mph, setting another Indy 500 record.

CNN: Brazil's Tony Kanaan wins Indy 500

Ofcom estimates that the average speed for an "up to 20Mbps" package is 6.2Mbps.

BBC: ISPs tussle over broadband access

If the average speed is above the limit, the motorist would receive a fixed penalty notice.

BBC: Speed cameras