| 单词 | bacteria bed |
| 释义 | bacteria bednouna layer of sand or gravel used to expose sewage effluent, in its final stages, to air and the action of microorganismsCompare filter bed (def. 1) Words nearby bacteria bed-bacter, bacteraemia, bacteremia, bacteri-, bacteria, bacteria bed, bacterial canker, bacterial capsule, bacterial endocarditis, bacterial infection, bacterial plaque Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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