| 单词 | 讯号 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔attenuate〕Electronics To reduce (the amplitude of an electrical signal) with little or no distortion.【电子学】 减弱讯号：在失真极小或不失真的情况下减弱（调幅或电子讯号）美国传统〔attenuator〕A device that attenuates an electrical signal.衰减器，减压器：使电子讯号减弱的装置美国传统〔converter〕An electronic device that converts one frequency of a radio signal to another.变频器：将无线电讯号从一种频率转换成另一种频率的电子装置美国传统〔decoder〕A device that decodes a scrambled electronic signal to make it interpretable.译码器：解除改变过频率的电子讯号，使其变得可解释的仪器美国传统〔digital satellite system〕A system in which a satellite dish receives a digital signal, decodes the signal, and passes it to a television, radio receiver, or computer.数字卫星系统：卫星碟形天线接收讯号，并将其译码传送至电视、无线电接受器或计算机的系统美国传统〔dish〕A radar dish picks up the radio signals and feeds them to a computer.雷达(抛物面)天线接收无线电讯号并把讯号输入计算机。英汉大词典〔emit〕Transmitters emit radio signals.发报机能发出无线电讯号。牛津同义词〔false start〕An illegal racing start in which one of the competitors begins moving before the starting signal.偷跑：不遵守规则却开始的赛跑，赛跑中的参赛者之一在起跑讯号开始前就先跑动美国传统〔fax machine〕A device that sends and receives printed pages or images over telephone lines by converting them to and from electronic signals.传真机：将影像数据转换为电子讯号，藉由电话线传送或接收打印出来的文件或是影像的机器美国传统〔feedhorn〕A satellite dish component that captures the signal reflected from the dish surface and channels it into an amplifier.碟形卫星天线：碟形卫星信号接收器设备，可以捕捉自碟形表面所反射出来的讯号并传送至放大器美国传统〔patent〕In 1880 Alexander Graham Bell was granted a patent on an apparatus for signalling and communicating called a Photophone.亚历山大‧格雷厄姆‧贝尔发明了一个可用来发送和传输讯号，称为「光线电话」的装置，并于1880年获授了此装置的专利权。剑桥高阶〔radio beacon〕A fixed radio transmitter that broadcasts distinctive signals as a navigational aid.无线电指向标：位置固定的无线电发射台，可以发出清晰的无线电讯号用以导航美国传统〔radio beam〕A focused beam of radio signals transmitted by a radio beacon to guide aircraft or ships.无线电射束：无线电指向标发出的一束无线电讯号给飞机或轮船导航美国传统〔red flag〕A warning signal.红旗：一种警告讯号美国传统〔signal〕In the 1970s it was illegal to transmit fax signals via the public telephone system.20 世纪 70 年代用公共电话系统发送传真讯号是违法的。朗文当代〔signal〕The Coast Guard picked up a distress signal from a freighter 50 miles out at sea.海岸警卫队接收到一艘离海岸 50 英里的货船发来的求救讯号。朗文当代〔signal〕This new pay-TV channel sends signals via satellite to cable companies.这个新的付费电视频道通过卫星把讯号发送到有线电视公司。朗文当代As fiber optics are immune to electromagnetic interference, they are better for signal transmission than wire cables. 光纤因不会受到电磁波的干扰，所以比一般的金属线更适于传达讯号。译典通Before the digital revolution, mankind relied upon analog signals to communicate with one another. 在数位革命之前，人类的通讯多半是靠类比的讯号。译典通 |
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