A dark viscous liquid or semi-solid mass deposited when a petroleum distillate is mixed with strong sulphuric acid during refining. Also called sludge…
| 单词 | θ215507 |
| 释义 | society > occupation and work > materials > raw material > mineral material > mineral oil > [noun] > deposited liquid or mass in refining of (2) sludge1885 A dark viscous liquid or semi-solid mass deposited when a petroleum distillate is mixed with strong sulphuric acid during refining. Also called sludge… sludge acid1885 = sense 2f above. |
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