Major U.S. airports have strengthened health screening procedures for passengers arriving from Africa.

美国各大主要机场已经加强对来自非洲的旅客的健康检测措施。

At major U.S. airports, screening procedures have been boosted in recent days.

近几年，美国主要机场也是升级了自己的安全检查。

The U.S. Defense Secretary has ordered a review of screening procedures for all foreign personnel training at bases in America

周五，一名沙特军官在佛罗里达州枪杀了三名海员。

We're finally getting to a point where we gather intelligence, we incorporate it into our screening procedures before they attempt it.

我们终于找到一种收集情报的方式, 在他们尝试前我们将其合并到我们的屏幕中来。

He didn't pass the screening procedures.

他没能通过筛选程序。

(a) Screening procedures: They are employed to test hearing in " high risk" infants and are based on infant's behavioral response to the sound signal.

（a）筛查步骤，通常用来测试 “高危” 婴儿的听力，并根据婴儿对声音信号的行为反应进行测试。

Why is in such a mystery, there's no screening procedures in place for brain cancers, understand it, and there's been no significant improvement in brain cancer survival rates, and more than two decades.That is unusual, isn't.

为什么是这样的一个谜，没有针对脑癌的筛查程序，明白吗，脑癌存活率没有显著提高，20多年来都没有。