工厂里的空气经过过滤去除杂质。

The air in the factory is filtered to remove impurities.

《柯林斯英汉双解大词典》

所有饮用水必须经过过滤。

All drinking water must be filtered.

《牛津词典》

一个优越性是经过过滤的空气清洁。

One advantage is clean and filtered air.

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废水经过过滤后，得到了很好的利用。

The waste, after being filtered, was put to good use.

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地表附近的凉水经过过滤渗透到地下。

Cool ground water near the surface percolates down into the earth.

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中国允许接近互联网，没错，但是那是经过过滤的。

China allows access to the Internet, yes, but it is filtered.

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中国允许接近互联网，没错，但是那是经过过滤的。

China allows access to the Internet, yes, but it is filtered.

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