Those particles essentially constitute the background that scientists will have to filter out to find distant astrophysical neutrino sources, but they are providing some surprises in their own right.

这些粒子实质上构成了科学家们需要剔除的信号背景，这样才能找到遥远的宇宙中微子源。但它们为它们的权力为人们提供了一些惊喜。

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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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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

If the standard were set at 10 micrograms per liter, Nikolaidis said thousands of local water systems and private wells in the country would have to filter the arsenic out to be in compliance.

CNN: Filter cleans arsenic-tainted water

The UKNC strongly supports the third option of consultation question 1 regarding the future nomination of UK World Heritage Sites - The UK should draw up a shorter and more focused Tentative List, spacing out our nominations so that we are not necessarily proposing a new site each year and introducing a two-stage application process to filter out early those sites unlikely to be successful.

UNESCO: UK National Commission for UNESCO :: UK National Commission for UNESCO response to DCMS World Heritage Policy Review Consultation

Although it is coy about details, the company says it will use software to filter out objectionable material and human reviewers to decide borderline cases.

ECONOMIST: Stop signs on the web