英语词汇“printing key frame”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	printing key frame
释义	printing key frame now historical noun A typewriter for producing embossed type, designed for use by blind people. The device was patented by Pierre Foucault in 1849 and was exhibited in London at the Great Exhibition of 1851.. Origin Mid 19th century.
随便看	mother hen motherhood motherhood and apple-pie mother house Mother Hubbard mother image mother imago mother-in-babe Mothering Day mothering pen Mothering Sunday mothering-up pen mother-in-law mother-in-law joke mother-in-law seat mother-in-law's tongue motherish mother kingdom motherkins mother kirk motherland Motherland Party mother language motherless motherlessness

英语词典包含243303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。

printing key frame