单词 | Verneuil process |
释义 | Verneuil process /verr noy"/; Fr. /verdd nue"yeu/ a process for making synthetic rubies, sapphires, spinels, etc., by the fusion at high temperatures of powdered compounds. Also called flame-fusion process. [named after A.V.L. Verneuil, 19th-century French mineralogist] |
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