单词	pyrometallurgy
释义	pyrometallurgy noun py·​ro·​met·​al·​lur·​gy ˌpī-rō-ˈme-tə-ˌlər-jē   especially British  -mə-ˈta-lə- : chemical metallurgy depending on heat action (such as roasting and smelting) pyrometallurgical ˌpī-rō-ˌme-tə-ˈlər-ji-kəl  adjective Example Sentences Recent Examples on the Web While the ash will contain useful materials, pyrometallurgy can produce toxic fumes and limits the recovery of other valuable components. Shel Evergreen, Ars Technica, 19 Apr. 2022 To extract those needles, recyclers rely on two techniques, known as pyrometallurgy and hydrometallurgy. Ian Morse, Science | AAAS, 20 May 2021 Word History Etymology International Scientific Vocabulary First Known Use 1908, in the meaning defined above
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