| 单词 | hall, charles martin |
| 释义 | Hall, Charles MartinHall, Charles Martin(1863–1914) engineer, manufacturer; born in Thompson, Ohio. In 1886, shortly after graduating from Oberlin College, Hall developed a new means of producing aluminum. In 1888 he organized the Pittsburgh Reduction Company to manufacture aluminum. Because he greatly reduced its cost, Hall is credited with making the metal a staple of the U.S. economy. |
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