They might end up getting cancer." Virtual colonoscopy as a screening tool is quite effective thats one of the reason why national cancer Institute recommends this as one of the screening device."

VOA: standard.2010.04.07

Another comparison for a meaningful drug screening essay, I would assume you would need 1 million cells that you could grow easily in a standard cell culture dish.

我们不妨再用一个,便于你理解的药物筛选试验来打个比方，假设正常情况下,一个标准细胞培养皿需要一百万个细胞。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

You went through a grueling screening process.

这是个疲劳轰炸的筛选过程。

麻省理工公开课 - 固态化学导论课程节选

Kip Hawley is a former head of the U.S. Transportation Security Administration, or TSA,which is charged with screening airline passengers and luggage.

VOA: standard.2009.12.30

Zee TV,a satellite television company in Mumbai, has picked up the screening rights for Priya.

VOA: standard.2010.02.15

As a consequence of the screening, he says many TB patients with HIV have been treated for that fatal disease and many lives have been prolonged and saved.

VOA: standard.2009.12.09

He said they looked at results of two studies he ordered shortly after the attempted attack: a review of airline screening procedures and another on the computerized government lists of individuals who might pose a security risk.

VOA: standard.2010.01.05

"Strong support is needed for them to rebuild their lives,". "The Mauritanian national refugee organization and its partners are assisting in the reintegration process with a variety of programs allocating farm land, providing Arabic and French language courses, doing medical screening of the returnees,etc."

VOA: standard.2009.10.24