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单词 vello process
释义 ve·llo process
\ˈvel(ˌ)yō-\ noun
Usage: usually capitalized V
Etymology: after Leopoldo Sanchez-Vello, 20th century Spanish inventor
: a process for producing glass tubing by dropping molten glass through an annular space surrounding a rotating hollow pipe, the diameter of the tubing being determined by pressure of the air passed through the pipe, drawing speed, and temperature of the glass
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更新时间:2024/9/22 2:10:05