电报机的

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）。

The principle of telegraphy is simple: Pulses of electrical current are sent through a wire by manually tapping on a key to operate a simple switch.

电报机的原理很简单。用按键来操纵一个开关，然后就在导线中就产生了电流脉冲。

The telegraph, the earliest method of delivering telecommunications, works by converting the contacts(connections between two conductors that permit a flow of current) between a telegraph key and a metal conductor into electrical impulses.

电报机这种最早的传递电信信息的方法，通过将电报机键与金属导体之间的接触（使电流得以流动的两个导体之间的连接）转换成电脉冲而进行工作。

Nsp; The code set used in Telex Transmission, named for French telegrapher Jean-Maurice Emile Baudot (1845-1903) who invented it.

博多码应用于电报机传输，以发明者法国电报员Jean-Maurice Emile Baudot(1845-1903)的名字命名。

At age twenty-three, he made a special telegraphic machine and sold it for a lot of money.

他对电报和电力很感兴趣。23岁时，他发明了一种特殊的电报机并卖了很多钱。

Considering the primitive nature of telegraphy at the time, it's astonishing just how quickly the demand grew.

尽管那时候电报机的特性简单，令人惊讶的是需求增长相当快。

The ideal arrangement is to have a teleprinter communicating between the two rooms.

理想的条件是两个房间由一台电传打字电报机联系。

A teleprinter is really a machine which sends a typewriter message over a telegraph circuit.

打字电报机实际上是一种在电报电路上传送打印信息的机器。

I see the electric telegraphs of the earth

我看见地球上的电报机

By the 1840s, telegraphs were the main form of long-distance communication.

一八四0年代时，长途通讯往往透过电报这种主要形式，只不过，当时电报机的操作速度很慢。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。