| 单词 | acid bottom and lining |
| 释义 | acid bottom and lining [`as·ǝd `bät·ǝm an `līn·iŋ] METALLURGY A melting furnace's inner bottom and lining composed of materials that at operating temperatures of the furnace react with the melt and slag to give an acid reaction; examples of materials are sand, siliceous rock, and silica brick. |
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