电信专业英英词典E-1

 

　　Earth Station - The term used to describe the combination of antenna¹, low-noise amplifier (LNA), down-converter, and receiver electronics that are used to receive a signal transmitted by a satellite.

　　EBCDIC - This acronym² stands for Extended Binary-Coded Decimal Interchange Code, and it is, similar to ASCII, a way of coding characters.

　　Echo Canceller - An electronic circuit which eliminates or attenuates³ the echo effect on satellite signals.

　　Echo Effect - A time-delayed electronic reflection of a sound that can be eliminated by echo cancellers.

　　Edge of Coverage⁴ (EOC) - A satellite's defined service area.

　　Edit - To change the content of a file.

　　Editor - This is piece of software that allows you to edit a file.

　　EIRP - This stands for Effective Isotropic Radiated Power. This term expresses the strength of the signal leaving the satellite or transmitting earth station antenna.

　　Electromagnetic Force - This is one of the four forces (with the other three being gravity and the strong and weak nuclear forces), and it has an infinite range and acts between objects according to their charge. It is proportional to the strength of the charges and inversely⁵ proportional to the square of the distance between them.

　　Electromagnetic Spectrum⁶ - This is the full range of frequencies, from radio waves to gamma rays, that characterizes light, and there is a direct relationship between the amount of energy electromagnetic radiation carries and its frequency. Radio waves are at one end of the spectrum and are low frequency and low energy radiation, while gamma rays are at the other end of the spectrum and are high frequency and high energy radiation. Visible light falls somewhat near the middle of the spectrum.

　　Electronic Mail - See Email.

　　Elevation⁷ - The measurement of the tilt⁸ of a satellite antenna, measured in degrees, that is required to point the antenna at the communications satellite. If, for example, the antenna were aimed at the horizon, the elevation angle would be zero (directly overhead would be 90 degrees).

1 antenna   

n.触角，触须；天线

参考例句：

• The workman fixed the antenna to the roof of the house.工人把天线固定在房顶上。
• In our village, there is an antenna on every roof for receiving TV signals.在我们村里，每家房顶上都有天线接收电视信号。

2 acronym   

n.首字母简略词，简称

参考例句：

• That's a mouthful of an acronym for a very simple technology.对于一项非常简单的技术来说，这是一个很绕口的缩写词。
• TSDF is an acronym for Treatment, Storage and Disposal Facilities.TSDF是处理，储存和处置设施的一个缩写。

3 attenuates   

v.（使）变细( attenuate的第三人称单数 )；（使）变薄；（使）变小；减弱

参考例句：

• The drug attenuates the effects of the virus. 这药能减轻病毒的危害。
• This attenuates the offside signal. 这样做会降低来自四周的信号。 来自辞典例句

4 coverage   

n.报导，保险范围，保险额，范围，覆盖

参考例句：

• There's little coverage of foreign news in the newspaper.报纸上几乎没有国外新闻报道。
• This is an insurance policy with extensive coverage.这是一项承保范围广泛的保险。

5 inversely   

adj.相反的

参考例句：

• Pressure varies directly with temperature and inversely with volume. 压力随温度成正比例变化，与容积成反比例变化。 来自《简明英汉词典》
• The amount of force needed is inversely proportional to the rigidity of the material. 需要的力度与材料的硬度成反比。 来自《简明英汉词典》

6 spectrum   

n.谱，光谱，频谱；范围，幅度，系列

参考例句：

• This is a kind of atomic spectrum.这是一种原子光谱。
• We have known much of the constitution of the solar spectrum.关于太阳光谱的构成，我们已了解不少。

7 elevation   

n.高度；海拔；高地；上升；提高

参考例句：

• The house is at an elevation of 2,000 metres.那幢房子位于海拔两千米的高处。
• His elevation to the position of General Manager was announced yesterday.昨天宣布他晋升总经理职位。

8 tilt   

v.(使)倾侧；(使)倾斜；n.倾侧；倾斜

参考例句：

• She wore her hat at a tilt over her left eye.她歪戴着帽子遮住左眼。
• The table is at a slight tilt.这张桌子没放平，有点儿歪.