So what does a filter do?

那么过滤器究竟做什么呢？

youdao

Our filter doesn't actually need to do this, as no initialization info is being used, but it is here for demonstration purposes.

我们的过滤器实际上并不需要这样做，因为其中没有使用初始化信息，这里只是出于演示的目的。

youdao

What we should do is just buy a sports bottle and fill it up with filter water from our faucet or our refrigerator.

我们应该做的是买一个运动用水瓶，并灌上水龙头或者是冰箱里的过滤水。

youdao

And actually, a question that might come up, I just explained, the sodium channel, you might say, well, how do potassium channels work then, because I can understand how you can filter something big out, but how do you filter out something small.

实际上，可能大家会问一个问题，我刚解释过，钠离子通道，你可以说，好吧，那么钾离子通道该如何起作用呢，因为我可以理解你是如何把大东西过滤掉的，但是你如何把小东西过滤掉呢？

麻省理工公开课 - 化学原理课程节选

But many organizations do not feel comfortable having a third party filter all their traffic and do not need the data distribution of a CDN.

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If they hit a filter, we will do something like call the customer to check.

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Once you have a handful of clear, high-leverage strategies, you can use them as a filter to decide what to do.

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