A new filter can save on energy bills.

一个新的过滤器能节省能源开支。

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A MERV rating tells you how well the filter can remove pollen and mold from the air as it passes through.

MERV 等级可以让你知道当花粉和霉菌在空气中传播时，过滤器将如何将之过滤。

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A clogged oil filter can also result in low oil pressure.

一个被堵住的过滤器也能引起油压不足。

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Once you can see it and once you can step back from it, then you can also decide, "This pass is my filter. This pass is my constraint.

一旦你看到了它，一旦你能退一步思考它，你就能决定，这么走可以去伪存真，这么走会遇到困难。

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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？

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"Even the SEC spam filter can't stop this, " Cox acknowledged in the press conference Thursday.

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The power needed to run the filter can be provided by any device that can provide 20 volts, such as a small solar panel.

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Edwards also bought a company called Embrella, which makes a filter that can be placed in the aorta in order to catch material.

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