| 单词 | read, nathan |
| 释义 | Read, NathanRead, Nathan(1750–1849) engineer; born in Warren, Mass. As a pharmacist, he worked on adapting Watt's steam engine to boats and road carriages. By 1791 he shared a patent for a chain-wheel method of using paddle wheels to propel a steamboat, but he never got financing to build it. He turned to iron manufacturing and in 1795 invented a machine for curring and heading nails. After 1800 he was active in politics. |
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