| 单词 | manganese nodule |
| 释义 | manganese nodulenoungeology a small irregular concretion found on deep ocean floors having high concentrations of certain metals, esp manganese Words nearby manganese noduleMangaluru, mangan-, manganate, manganese, manganese bronze, manganese nodule, manganese spar, manganese steel, manganese violet, manganic, manganic acid 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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