The test is used to filter out candidates who may be unsuitable.

这个测验是用来淘汰不适合的求职者。

《牛津词典》

Not everyone is able to filter out that negative element.

不是所有人都能过滤掉那些负面元素。

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I need it to filter out callers.

我需要它帮我过滤来电者。

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What all of these channels have is what's called a selectivity filter, so this filter filters out the type of ion that's going to be allowed through.

这些离子通道都有的一部分,就是所谓的选择性过滤器，这个过滤器,会滤过允许穿过的离子。

麻省理工公开课 - 化学原理课程节选

But that makes it difficult for Google to filter out the bad guys.

FORBES: Googling For Grand Larceny

It also calls for a way of allowing parents to filter out music and videos aimed at an adult audience.

BBC: Age-ratings call for music DVDs

Recording the blips also requires sending this gathered-up light through microscope lenses to filter out rival light from the laser itself.

FORBES: On The Cover/Top Stories