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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AA11: "Boston Center, good morning, American 11 with you passing through one nine zero for two three zero."

AA11：“波士顿控制中心，早上好，美航11号航班正通过190区域进去230区域。”

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CONTROLLER: "American 11, Boston Center, Roger, climb, maintain level two eight zero."

CONTROLLER：“美航11号航班，这里是波士顿控制中心，收到，继续攀升并维持在280区域。”

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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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