morse code相关的网络例句

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与 morse code 相关的网络例句 [注：此内容来源于网络，仅供参考]

Originally created for Samuel Morse's electric telegraph in the mid-1830s, it was also extensively used for early radio communication beginning in the 1890s.

它由美国人艾尔菲德·维尔发明，当时他正在协助萨缪尔·摩尔斯进行摩尔斯电报机的发明（1835年）。

Howe says the telegraph, developed by Samuel Morse, promoted long-distance trade in commodities such as cotton, which was grown in the southern states and shipped to the north and Europe.

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Also new to the Obama bookshelves are three mechanical devices on loan from the National Museum of American History's patent collection: models for Samuel Morse's 1849 telegraph register, John Peer's 1874 gear-cutting machine and Henry Williams' 1877 feathering paddlewheel for steamboats.

此外，书架上还增添了从美国历史博物馆借来的三件机械专利藏品，分别是1849年萨缪尔·摩尔斯发明的电报机模型，1874年约翰·皮尔发明的齿轮加工机床模型，以及 1877年亨利·威廉姆斯发明的汽船活叶明轮模型。

Contemporary US President George Bush , and current President George W. Bush , former Florida Governor Bush , telegraph inventor Samuel Morse and the American poet Oliver Wendell Homes Sr.

当代美国总统老布什，和现任总统小布什，前佛罗里达州州长小布什，电报的发明人Samuel Morse 和美国著名诗人Oliver Wendell Homes Sr。

Samuel Morse demonstrated first telegraph.

1830年第一次表明塞缪尔莫尔斯电报。

In the 1820s, Samuel Morse's telegraph, Alexander Graham Bell's telephone and Guglielmo Marconi's radio were ranked as the three major inventions in the telecommunications sector, with radio being the most important one.

在十九世纪二十年代，莫尔斯电报、贝尔发明电话、马可尼发明无线电，称通信三大发明，当时以无线电为主。

Samuel Finley Brown Morse Papers, 1911-1969call number JL016; 42.5 linear ft.

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Telegraphy by Samuel F. B. Morse.

塞缪尔。F.B。摩尔斯发明电报技术。

Samuel Morse demonstrates his electromagnetic telegraph.

摩尔斯发明电磁电报机。

Semifinalist:"I love '80s movies," says Arlington resident Julia Morse, 24, an analyst for the Department of Justice.

创作者表示，非常喜欢上世纪80年代的电影。