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单词 Stetefeldt furnace
释义

Stetefeldt furnace

noun

Stet·​e·​feldt furnace
ˈstetəˌfelt-
: a shaft furnace in which silver ores are desulfurized and chloridized by dropping them pulverized and mixed with salt through a heated atmosphere

Word History

Etymology

after Charles A. Stetefeldt, 20th century American mining engineer, its inventor

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更新时间:2024/12/23 23:41:16