It changes the sampling waves into absolute values and set half period as data window length.

该方法是将采样波形取绝对值，定义数据窗长度为半个周期。

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Cut the circular cake in half and set each semicircle against adjoining sides of the square to form the top of the heart.

把圆形蛋糕切成两半，把每个半圆放在正方形的两边，形成心形的顶部。

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"Universities charge half of what parents pay for a place at an average nursery, "he said, "they should be allowed to set fees as they see fit."

他认为：“大学仅收取家长支付给一个普通幼儿园一半的费用，大学应该有权利收取他们认为合适的学费。”

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He says that teenagers should set the volume control on their music players to somewhere between one-half and two-thirds the highest level,never louder.

VOA: special.2010.09.28

Half of her he set up and ceiled it as sky, Pulled down the bar and posted guards.

他将她身体的一半向上提起，变成天空，关上了门闩，派遣了士兵。

耶鲁公开课 - 旧约导论课程节选

and he set aside a couple of, like, one and a half-hour long appointments.

我们约定了两三次见面的时间，每一次都有一个半小时长。

与教授的面谈 - SpeakingMax英语口语达人

The favorite chant is simply "B-V-B, " which comes out as three letters they manage to set to half-a-dozen different tunes.

WSJ: Borussia Dortmund's Fans Stand Up For Their Team

Information is abundant, so be sure to set aside half a day to fully appreciate the role that Liliesleaf played in the resistance movement.

BBC: In the footsteps of greatness

In November 2007, Vodafone produced a strong set of half-year results that showed it was squeezing growth out of its emerging markets investments.

FORBES: Sarin The Survivor Steps Down