The deep bed filter is one of the basic units in water treatment engineering, it plays an important role in the produced water treatment of oil field and waste water treatment of refineries.
深层过滤是水处理工程中的基本单元方法，在油田注水处理、石化厂废水治理方面有很重要的地位。
The deep bed filter is one of the basic units in water treatment engineering, it plays an important role in the produced water treatment of oil field and waste water treatment of refineries.
深层过滤是水处理工程中的基本单元方法，在油田注水处理、石化厂废水治理方面有很重要的地位。
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