The kinetics of nitrification biofilm in upflow and pure oxygen has been studied.
对上向流直接供氧生物膜硝化动力学进行了试验和讨论。
The technique of upflow biological aerated filter is applied in Pingzhou Sewage Treatment Works.
佛山市平洲污水处理厂污水处理工艺采用上流式曝气生物滤池工艺。
To reduce the heavy load on dust collectors upflow beds were soon replaced by downflow fluidized beds.
为了减轻粉尘收集器的负荷，上流式流化床不久被下流式流化床所取代。
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