| 单词 | aqua regia |
| 释义 | Word Frequency aqua regia(ˈriːdʒɪə) noun a yellow fuming corrosive mixture of one part nitric acid and three to four parts hydrochloric acid, used in metallurgy for dissolving metals, including gold Also called: nitrohydrochloric acidWord origin C17: from New Latin: royal water; referring to its use in dissolving gold, the royalmetal |
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