名词
中文翻译：受控过滤器
同义词：
['controlled filter', 'filtered', 'controlled', 'filtered']
例句：
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1. The new airpurifier has a controlled filter that removes 99.9% of allergens.
这款新的空气净化器有一个受控的过滤器，可以去除99.9%的所有过敏原。
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2.The water in the lake is so clear that you can see the bottom through the controlled filter.
湖里的水如此清澈，以至于你可以通过受控过滤器看到底部。
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3. The engineer used a controlled filter to remove pollutants from the air before testing it for quality.
工程师使用受控过滤器在测试空气质量之前从空气中移除污染物。