Of course , whatever filter medium, we need to make sure to exhaust thickness and lifetime requirement.

其他用于选择过滤材料的标准必须服从于排放浓度的控制标准和使用寿命的要求.

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The carrier of the modified filter medium is the volcanic rock coated with a polycondensate modifier.

改性滤料的载体为火山岩,火山岩上涂有缩聚物改性剂.

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