Research on mass cultivation of microorganism was performed as a part of the study on the microorganism addition to improve the contaminated water quality of Wai Huan River.
微生物菌剂规模化培养技术的研究，是投菌法改善外环河水质项目研究中的一部分。
Research on mass cultivation of microorganism was performed as a part of the study on the microorganism addition to improve the contaminated water quality of Wai Huan River.
微生物菌剂规模化培养技术的研究，是投菌法改善外环河水质项目研究中的一部分。
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