Two Methods : To start - up the upflow anaerobic sludge blanket bed ( UASB ) reactor were investigated.

对 UASB 反应器两种启动方式作了比较研究.

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Additional markings can be added to the cable to pre - define maximum and minimum sludge blanket positions.

也可在电缆上作另外的标记,来预先确定污泥层位置的最高点与最低点.

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