Paid services usually have more safety and screening procedures than free.

付费的婚恋网站往往比免费的更安全，审核程序也更严格。

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In some cases, the introduction of screening procedures to identify potentially infected persons may be considered.

在某些情况下，可考虑采用筛查程序以查明潜在受感染的人员。

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Gatekeeping refers to the screening procedures employed to identify how, and which, products enter the return stream.

守门指的是采用甄别程序识别什么产品如何进入退货流。

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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

"As we develop new screening technologies and procedures,"

VOA: special.2010.01.09

Citing security concerns, airlines are declining to discuss screening procedures and the decisions surrounding them.

CNN: Airlines, passengers confront racial profiling

No one is arguing about the mortal necessity of tightening our screening procedures.

FORBES: Fact and Comment

But there's another hurdle awaiting travelers this holiday season: the Transportation Security Administration's enhanced security screening procedures.

FORBES: Magazine Article