In 1837 he was granted a patent on an electromagnetic telegraph that transmitted signals along a wire.

1837年他实现了通过一根导线传输电磁电报,并获得了专利。

属类：IT行业-通讯-

Electromagnetic environment requirements for sea long and middle range radionavigation stations and monitors

GB13613-1992对海中远程无线电导航台站电磁环境要求

属类：行业标准名称--

Requirements of the electromagnetic environment for short-wave radio direction finding stations

GB13614-1992短波无线电测向台(站)电磁环境要求

属类：行业标准名称--

Requirements of electromagnetic environment protection for air defense surveillance radar station

GB13618-1992对空情报雷达站电磁环境防护要求

属类：行业标准名称--

Quantities and units of light and related electromagnetic radiations

GB3102.6-1993光及有关电磁辐射的量和单位

属类：行业标准名称--

Electromagnetic compatibility Requirements for household appliances,electric tools and similar apparatus Part 2:Immunity--Product family standard

GB4343.2-1999电磁兼容家用电器、电动工具和类似器具的要求第2部分:抗扰度产品类标准

属类：行业标准名称--

Safety of household and similar electrical appliances--Particular requirements for electromagnetic cookers

GB4706.29-1992家用和类似用途电器的安全电磁灶的特殊要求

属类：行业标准名称--

Technical requirements for hand-held electromagnetic disk used for the presses

GB5093-1985压力机用手持电磁吸盘技术条件

属类：行业标准名称--

Electromagnetic environment requirements for aeronautical radionavigation stations

GB6364-1986航空无线电导航台站电磁环境要求

属类：行业标准名称--

This chapter provides the main background for the electromagnetic theory used in this book

本章阐述本书所用的电磁场理论的主要基础。

属类：综合句库--

Used, too, were such newly developed but more destructive weapons as electromagnetic pulse bombs and graphite bombs

并使用了电磁脉冲炸弹、石墨炸弹等破坏力极强的新式武器

属类：时事政治--

Adopt effective measures to prevent and control the pollution and harms caused to the environment by waste gas, waste water, waste residues, dust, malodorous gases, radioactive substances, noise, vibration and electromagnetic radiation generated in the course of production, construction or other activities.

采取有效措施,防治在生产建设或者其他活动中产生的废气、废水、废渣、粉尘、恶臭气体、放射性物质以及噪声、振动、电磁波辐射等对环境的污染和危害。

属类：法学专业-中国法律-环保法

a specified frequency band for the transmission and reception of electromagnetic signals, as for television signals.

传送和接收电磁信号的一特定的频率波段,如电视信号.

属类：综合句库-未分类-

Electromagnetic compatibility of electrical and electronic installations in ships

船舶电气与电子设备的电磁兼容

属类：行业标准名称-国家标准名-GB/T10250-1988

Storage hardware serves the same basic functions as do off-ice filing systems except that it stores data as electromagnetic signals or laser-etched spots,commonly on disk or tape, rather than on paper.

存储硬件的作用与办公室文档系统的作用相同。但不同的是存储硬件所存放的数据是一些电磁信号,或者是一些激光蚀刻光点,而且一般均存储在磁盘或磁带上,而不是在纸上。

属类：行业术语-计算机-网络

That is the principle of a radio transmitter, where electrons are moved backwards and forwards in an antenna and hence generate an electromagnetic disturbance that propagates through space

当电荷运动时就会产生电磁场,这是无线电发射器的工作原理:电子在天线中往复运动,从而产生电磁波并向空间传播。

属类：综合句库--

A range of electromagnetic frequencies that pass unobstructed through a planetary atmosphere.

电波反射装置电磁波段能够不受阻碍地穿过行星大气层的一种电磁频率范围

属类：综合句库--

The electric and magnetic fields have been amalgamated into electromagnetic field tensor

电场和磁场合并为电磁场张景。

属类：综合句库--

Electromagnetic waves,eg X-rays,radio-waves,light waves

电磁波(如X射线、无线电波、光波).

属类：综合句库-典型例句-

An electromagnetic field consists of two components, an electric field that acts on charged particles (whether stationary or moving)and a magnetic field that acts only on moving charged particles

电磁场包含两种作用形式:电场作用于带电粒子(不论粒子静止或运动)

属类：综合句库--

spectral domain method for electromagnetic field

电磁场的谱域法

属类：综合句库--

An electromagnetic field is a disturbance that spreads through empty space, the vacuum, at a fixed speed called the speed of light c, which is about 3108m/s-1

电磁场是一种波动,它在无物质的空间,即真空中,以一定的速度传播,该速度被称为光速,约为3×108m/s-1。

属类：综合句库--

An electromagnetic field can also induce motion in charged panicles, which is what happens when the electromagnetic field of a distant transmitter moves past the antenna of receiving set

电磁场也能引发荷电粒子的运动,这就是一定距离以外发射器传来的电磁波在传过接收装置天线时的情况。

属类：综合句库--

electromagnetic energy accumulation type welder

电磁储能式电焊机;电磁蓄能式熔接

属类：科技术语--

The centimeter-gram-second electromagnetic unit of potential difference,equal to one hundred-millionth of a volt.

电磁伏特厘米-克-秒制势差的电磁单位,相当于亿分之一伏特

属类：综合句库--

protection against electromagnetic irradiation

电磁辐射防护

属类：综合句库--

Electromagnetic radiation is corpuscular

电磁辐射是微粒性的。

属类：综合句库--

The centimeter-gram-second electromagnetic unit of inductance,equal to one billionth of a henry.

电磁亨利厘米-克-秒制中感应系数的电磁单位,相当于一亨利的十亿分之一

属类：综合句库--

Electromagnetic compatibility Testing and measurement techniques Electrical fast transient/burst immunity test

电磁兼容试验和测量技术电快速瞬变脉冲群抗扰度试验

属类：行业标准名称-国家标准名-GB/T17626.4-1998

Electromagnetic compatibility Testing and measurement techniques Power magnetic field immunity test

电磁兼容试验和测量技术工频磁场抗扰度试验

属类：行业标准名称-国家标准名-GB/T17626.8-1998