青云翻译

Device to run 90 days after the sampling filter layer of the device at different depths, and determination of the number of bacteria on the surface filter, the results shown in Figure 9.

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After the installment moves 90 day, to the equipment different depth filter bed sample, the determination filters the material surface bacterium quantity, finally see Figure 9 to show.

unit run for 90 days, the unit of different depth filter material sampling, measurement of bacteria on the surface, results shown in Figure 9.

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