名词
中文翻译：棉絮过滤器
同义词：
['wool filter', 'felt filter']
例句：
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1. The water was so clear thatit could be used for drinking purposes.
水非常清澈，可以用于饮用。
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2. The filterremoves impurities from the water, making it safe to drink.
过滤器从水中去除杂质，使水变得安全可饮。
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3. The filter is made of wooland can be used in various applications.
这种过滤器由羊毛制成，可用于各种应用。