刚性烧结微孔管由于有一定的壁厚，毛细孔道的深层也可起明显的过滤作用。

Because rigid sintered microporous tube have certain wall thickness, and the deepness of pores can also have apparent filtering effect.

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脾具有过滤作用，清除衰老的红细胞和红细胞内含物，脾也是血小板的贮存库。

The spleen ACTS as a filter, removing old red blood cells and RBC inclusions. The spleen also ACTS as a storage area for platelets.

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实验表明4号活性炭仍具有一定的吸附功能，其他4种活性炭已经失去吸附过滤作用。

The results show that activated carbon No. 4 still retains some adsorption function. The other 4 kinds of activated carbon have lost their adsorption filtration functions.

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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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