| 单词 | alum production |
| 释义 | > as lemmasalum production alum production n. ΚΠ 1874 D. Page Econ. Geol. xiv. 234 The earliest centres of alum production in Britain were Whitby in Yorkshire, and Hurlett and Campsie near Glasgow. 2001 P. Ball Bright Earth iii. 65 Alum production was a large medieval industry. < as lemmas |
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