音标:[ˈreidiəuˈfri:kwənsi ˈspektrəm] ;
射频频谱
词型变化:名词复数形式 : radio-frequency spectrums
【近义词】

2042 A.D., powerful orbiting telescopes scour the heavens for signs of life. They focus on a dim yellow globe. Spectrum analyser results, negative, no oxygen, no life. The autotracker zooms into anoth

发表于:2018-12-07 / 阅读(71) / 评论(0) 分类 寻访外星人

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(80) / 评论(0) 分类 英语小短文

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(166) / 评论(0) 分类 新东方背诵文选

Iknewaguywhoplayedhisradioonlyinthemorning. Whensomeoneaskedhimwhy , hereplied,ThisisanAMradio. Notes: 1.Iknewaguywhoplayedhisradioonlyinthemorning. 我认识一个人,他只在早上收听广播。 2.Whensomeoneaskedhimwhy , hereplied,Thisisan

发表于:2018-12-26 / 阅读(72) / 评论(0) 分类 英语笑话(MP3+文本)

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(61) / 评论(0) 分类 考研背诵50篇

On January 11, Norway became the first country to begin turning off signals from its FM radio network. The Norwegian stations will instead use only digital audio broadcasting, called DAB. FM, or frequency modulation, radio stations have been in opera

发表于:2019-01-02 / 阅读(130) / 评论(0) 分类 2017年VOA慢速英语(一)月

Three radio stations in the United States mainly broadcast one thing: the official time. The three are radio stations WWV and WWVB, in the state of Colorado, and WWVH, on the island of Kauai in Hawaii. They send out signals that are used by millions

发表于:2019-01-03 / 阅读(82) / 评论(0) 分类 2018年VOA慢速英语(九)月

Cache - Generally, a place to temporarily store something. Regarding computers and telecommunications, it is a place where data is temporarily stored during transmission. Call - This is a connection b

发表于:2019-01-03 / 阅读(75) / 评论(0) 分类 电信英语

Focal Length - Distance from the exact center of the dish to the center of the feed. Focal Point - The physical point in space toward which the satellite reflector dish directs the received signal so

发表于:2019-01-03 / 阅读(90) / 评论(0) 分类 电信英语

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

发表于:2019-01-03 / 阅读(76) / 评论(0) 分类 电信英语

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(117) / 评论(0) 分类 英语小短文

新技术:开灯就有无线宽带 Bulbs could soon be used to broadcast household broadband 英国爱丁堡大学的一位教授研究出了一项新技术,能够让普通的电灯泡作为无线网络信号传输器,只要开灯,就能无线上

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 轻松英语

Screams Have Special Place in Brain 尖叫声在大脑中会有特殊的位置 From VOA Learning English, this is the Health Lifestyle report. Have you ever thought about screaming? A blood-curdling scream is a natural reaction to sudden, extreme fri

发表于:2019-01-12 / 阅读(82) / 评论(0) 分类 2015年VOA慢速英语(八)月

Robot Can Help With Farm Work 可以帮助农民干活的机器人 In the American state of Idaho, a robot moves between lines of fruit trees and grapevines. It is doing farm work. Called IdaBot, this robot is a prototype, or model. An engineering te

发表于:2019-01-12 / 阅读(385) / 评论(0) 分类 2016年VOA慢速英语(十一)月

Science and Technolgy. 科技。 Visible-light communication. 可见光通信。 Tripping the light fantastic. 与光共舞。 A fast and cheap optical version of Wi-Fi is coming. 一个高速而廉价的光学Wi-Fi即将问世。 AMONG the many new

发表于:2019-01-26 / 阅读(125) / 评论(0) 分类 经济学人科技系列

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-02 / 阅读(87) / 评论(0) 分类 英语新闻

Science and technology 科学技术 Visible-light communication 可见光通信 Tripping the light fantastic 与光共舞 A fast and cheap optical version of Wi-Fi is coming 一个高速而廉价的光学Wi-Fi即将问世 AMONG the many new gadgets u

发表于:2019-02-06 / 阅读(84) / 评论(0) 分类 经济学人科技系列

Science and technology 科学技术 Searching for aliens 寻找外星人 The wow factor 防止再次意外 A new citizen-science project will improve the chances of finding ET 一个新的平民科学项目可以增大找到地外智慧的机会 EVER

发表于:2019-02-16 / 阅读(68) / 评论(0) 分类 经济学人科技系列

By Stuart Cohen Sydney 08 October 2009 Southern Brown Tree Frog sits on a log in swampy lands near Melbourne, Australia (Sept 2009 file photo) Australia's frogs are having trouble finding love. Traffic noise and other sounds of city life, such as ai

发表于:2019-02-20 / 阅读(70) / 评论(0) 分类 VOA标准英语2009年(十月)

Chinese scientists have announced a gravitational wave research plan they're dubbing Taiji. The Chinese Academy of Sciences says their research plans will be finalized later this year. Academy member Wu Yueliang says their research will focus on low

发表于:2019-02-21 / 阅读(84) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
admiralty metals
advanced feed hole
African hunting dogs
annual reporting system
anorectic
arespalditza (respaldiza)
artbridge
association retrieval system
auxiliary reproducing head
bassey
bilberries
blue-black
briefing bright
Buckland St Mary
bur oak
cactus mice
capability survey
captive mine
cepaenes
Cephalomappa
Codonopsis tangshen Oliv.
cornucoquimba transversalis
Couette-Taylor flow
crankin
crapplications
cult of science
cure ... of
determination of manual element time
disk flow condenser
encapsulated electric motor
Eriocaulon cinereum
flat epithelial cell
folding bicycle
free-piston gas turbine
genus menziesias
grape-grower
Guyon's isthmus
handkey
harmonic instrument
Hazel Dell
heavy-traffic road
highway data bank
hydraulic folding hatchcover
insensateness
Ipomoea biflora
jacket collar
Janum
lize
local circumstance
m-ary phase-shift keying (mpsk)
magnetostatic electron
Martinistic
methoxypyrazine
Moc Chau
mohanas
multiple measurements
multiple routine architecture
Obelisk Guard Tower
permanganic anhydride
pharmacochemical
pinacothecas
PLEL
Polycory
Posang-ni
postbus
Potentilla centigrana
predecessoresses
Premonstratensians
Prethiadon
proportional plus reset action
rachitis rosary
radiary
rafiki
rather...than otherwise
reduction of soundings
rehypothecations
right place
Rockwell
Schur function
sesquisyllabic
sharp-nose pliers
sherryvallies
shiitake fungus
systematic description
ta ting chih wu
take with one
the small
thistle-tack
to make a long arm
turkeyfoot
tympanic cell
umpsteen
unikoms
up-striked
Vershinino
villus folds
visible balance
Voron'yë
yellow water lily
Zabusky equation
zinconite (hydrozincite)