结果就是用英尺表示的横段的长度。

The result is the length of the crossbar in feet.

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输入装饰段的长度，从楼梯底部开始计算。

Enter the length of the ornamentation detail, from the bottom of the staircase.

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对每个小段，用函数的值，与那一小段的长度相乘。

And then, for each little piece, you take the value of a function, and you multiply by the width of a piece.

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The force, as this weight drops is constant, mgh and so the work is just going to be m g h, h where this is h.

当重物掉落时候的力是恒定的，因此做功就是，这段长度是。

麻省理工公开课 - 热力学与动力学课程节选

So if I had drawn that better it would look as if this was half of this distance, but I didn't draw it well.

如果我画得准确的话,这段应该是整段长度的一半,不过我没画好

耶鲁公开课 - 博弈论课程节选

So this is a - c over b and this is a - c over 2b so this distance and this distance are meant to be the same.

这点是,/b,这点是,/2b,这两段长度应该是相等的

耶鲁公开课 - 博弈论课程节选