During a five-month field test of HyGreen at the University of Florida's medical center, infection rates dropped to zero.

在佛罗里达大学医疗中心进行的为期五个月的超洁试用过程中，感染率降低到零。

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The first known use of "zero-gravity" is from Jack Binder (better known for his work as an artist) in 1938, and actually refers to the gravityless state of the center of the Earth's core.

1938年杰克·宾得（作为一个艺术家而闻名）第一次使用“零重力”，事实上是指地球核心的无重力状态。

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Make v2 zero, and you see exactly that you see here the same result, so this must be the velocity of the center of mass.

使v2为，你显然知道,在这里有同样的结果，它必然是重心速度。

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It has also sung at the White House, the Kennedy Center and at Ground Zero in New York City.

VOA: special.2009.11.13

Let's plot droplet velocity as a function of looking at the number that have this velocity 0 with the zero being in the center here.

我们将液滴的速度设定为,观察那些数字作用，在中心的地方,速度为。

麻省理工公开课 - 固态化学导论课程节选

Patrick's Cathedral on Fifth Avenue and visit the World Trade Center ground zero ahead of celebrating Mass at Yankee Stadium.

CNN: At synagogue, pope seeks 'bridges of friendship'

In New York, families and friends who lost loved ones at the World Trade Center gathered at Ground Zero for a solemn ceremony.

CNN: Solemn tributes mark 9/11's fifth anniversary

Critics said the center's proximity to ground zero was unacceptable, while supporters argued it was meant to bring people together.

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