The reason why SND can occur in the oxic swim-bed biofilm reactor is that there exists different micro-environment inside the biofilm on the biofringe(?)
因此在好氧摇动床生物膜反应器中，生物膜内部同时存在好氧微环境和缺氧微环境是SND能够发生的主要原因。
参考来源 - 摇动床技术和厌氧氨氧化石化废水生物脱氮·2,447,543篇论文数据，部分数据来源于NoteExpress
摇动床体c的摇杆，躺在上面的病人可平行移至另外一张病床或手术台上。
Rotate the crank handle of bed board c, patient can be moved parallelly to another ward bed or operation table.
刚一直很安静的皮诺乔现在抖得很厉害，连床都摇动起来了。
Pinocchio, who until then had been very quiet, shuddered so hard that the bed shook.
“床在摇动，我醒了，听到画框从墙上向下跌落的声音。”他说。
"I awoke to my bed shaking and heard some pictures from the walls falling down," he said.
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