青云翻译

The filter layer microorganisms has reached a certain number, and part of the attachment on the filter, the filter layer with a certain degree of resistance to impact load, Figure 7 shows the manganese sand surface biofilm.

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This time in the filter bed the microorganism already achieved certain quantity, also has a part to adhere to stick cohere fixes in filters on the material, the filter bed had certain anti-impact load ability, Figure 7 had demonstrated the manganese ore surface already had the biomembrane existence.

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