| 单词 | hyatt, john |
| 释义 | Hyatt, JohnHyatt, John (Wesley)(1837–1920) inventor; born in Starkey, N.Y. An energetic apprentice printer, he embarked on a long career as an inventor with a knife sharpener in 1861. He later developed a water filter, a multiple-needle sewing machine, and the Hyatt roller bearing, which he began producing in his own factory in 1892. His best-known discovery, made in the search of a substitute for the ivory used in billiard balls, was the plastic celluloid, which he created in 1869–70 by mixing pyroxylin, camphor, and alcohol. |
| 随便看 |
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。