名词短语
中文翻译：过滤器的环形和碟形滤网
同义词：
['ring filter', 'disc filter']
例句：
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1.The ring and disc filter is used to remove impurities from the water.
环形和碟形滤网用于去除水中的杂质。
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2. The ring and disc filter is an essential part of the water treatment system.
环形和碟形滤网是水处理系统的重要组成部分。
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3.The ring and disc filter is designed to improve the quality of the water.
环形和碟形滤网的设计目的是提高水质。