通过灭活试验和细菌计数等试验验证该滤柱在除铁中，生物氧化起主要作用。
The inactivation experiment, bacteria counting experiment and some other experiments indicated that biological oxidation had a significant effect on iron-removal in the said filter candle.
通过灭活试验和细菌计数等试验验证该滤柱在除铁中，生物氧化起主要作用。
The inactivation experiment, bacteria counting experiment and some other experiments indicated that biological oxidation had a significant effect on iron-removal in the said filter candle.
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