The length of time of which the eyes stop—the duration of the fixation—varies considerably from person to person.

眼睛停留的时间，即注视的持续时间，因人而异。

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By contrast, the audience encounters an opera or a play over a specific time, which is the duration of the performance.

相反，观众可以有一段具体的时间来欣赏话剧或者戏剧，这段时间就是表演的持续时间。

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The rise time and the peak energy and the sustained duration of some of these sounds are highly detrimental to our hearing.

某些声响的起始，高峰以及持续阶段,对我们听力的损害,是极大的。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

Today we're going to move away from the first dimension of music that we've been looking at, which is duration, or time, and begin to work with the second, which is pitch, and melody.

今天我们要结束对音乐的第一个维度的学习,即时值,或者说拍子,并开始讨论音乐的第二维度,即音高与旋律

耶鲁公开课 - 聆听音乐课程节选

We talk in terms of high pitch and low pitch although we'll fine tune that next time, and then we have this idea of duration or time, which we tend to write out in symbols that move from your left to right.

我们是从高低方面来谈论音高,即使我们将于下次讲解曲调的问题,我们已经有了音符时值或时间的概念,我们倾向于用符号来表示,时间是从你的左边向右边移动的

耶鲁公开课 - 聆听音乐课程节选

Will keeping vaccine induced immunity high for a longer period of time increase the duration of protection?

WHITEHOUSE: HIV Vaccine Awareness Day, 2011

The watch was used to time the duration of the Descent Orbit Insertion maneuver and to time the rendezvous maneuvers after launch from the lunar surface.

FORBES: Apollo 15 Bulova Moon Watch Up for Auction at Bonhams

Their killing and the exchange of gunfire that led to the shooter's death occurred in "a relatively short duration of time, " added Petucci, and physically all within a 1.5-mile radius.

CNN: 4 dead, including shooter, in central Pennsylvania