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| bacteria bed | |||
| aerated lagoon; contact bed; contact filter; fill and draw contact bed; bacterial bed; bacterial bed A device that removes some suspended solids from sewage. Air and bacteria decompose additional wastes filtering through the sand so that cleaner water drains from the bed | |||
| oxydatiebed: 5 短语, 1 学科 |
| 环境 | 5 |