| 单词 | alumina |
| 释义 | alumina (once / 8510 pages) n WORD FAMILY alumina USAGE EXAMPLESThe company had attributed its superior margins to making its own electricity and alumina, inputs that account for about 70% of aluminum’s production costs. Wall Street Journal(Nov 24, 2016) In 2009, Vale’s Alunorte alumina refinery in the Brazilian Amazon leaked a toxic waste product known as red mud into a local river. Wall Street Journal(Oct 28, 2016) In a statement, Alumina said it has concerns over the split’s implications on AWAC. Wall Street Journal(May 31, 2016) n any of various forms of aluminum oxide occurring naturally as corundum Syn|Hypo|Hyper aluminium oxide, aluminum oxide alundum a substance made of fused alumina corundom, corundum very hard mineral used as an abrasive |
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