Sludge deposits are removed on a regular basis and an ozone aeration system reduces bacteria accumulation, eliminating stagnation and increasing dissolved oxygen levels.
他们队清理了湖底沉积的淤泥,建立起一个臭氧曝气系统以减少细菌数量,促进水的流动并提高水体的含氧量。
Sludge deposits are removed on a regular basis and an ozone aeration system reduces bacteria accumulation, eliminating stagnation and increasing dissolved oxygen levels.
他们队清理了湖底沉积的淤泥,建立起一个臭氧曝气系统以减少细菌数量,促进水的流动并提高水体的含氧量。
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