单词：signal-to-noise ratio for record-playback channel
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Telecommunication Telecommunication refers to communication over long distances. In practice, something of the message may be lost in the process. Telecommunication covers all forms of distance and/or
新概念英语第一册Flash第2版
Lesson 36: Across the Channel 横渡海峡 First listen and then answer the question. 听录音，然后回答以下问题。 What is Debbie going to try to do? Debbie Hart is going to swim across the English Channel tomorrow. She is going to set out
新概念英语第二册
Review Four.We're going to practive saying some words from this lesson. [00:-1.00]Listen and repeat. [00:-2.00]channel What channel is it on? [00:-3.00]conclusion When can you watch the conclusion? [00:-4.00]murder Murder at Midnight [00:-5.00]solve
洪恩环境英语
图片 by Jason Marshall Some math is functional. Some math is fun. And some math is simply stunning. If that last description sounds improbable to you, then today just might change your mind. Because now that weve covered enough ground, were going t
数学英语
图片1 图片2 by Jason Marshall Despite many peoples assumption to the contrary, math is undeniably artistic. It takes a tremendous amount of creative muscle and artistry to devise mathematical solutions. And, as made evident by their frequent batt
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City Code - Some foreign countries require you to dial a city code before the phone number you are trying to reach. Clamp - A circuit that removes the energy dispersal signal component from the video
电信英语
Ground - Connecting the Earth to electrical equipment with a conductor. This is done so current overloads (perhaps due to a lightning strike) can be safely diverted to the Earth. Ground Fault Circuit
电信英语
D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in
电信英语
中文 英文 缩写 多功能话务台 Multi-function Attendant Console MAC 多功能信息分配系统 Multi-function Information Distribution System MIDS 多级存储管理 multi-tier hierarchical
电信英语
中文 英文 缩写 初始存取时间 initial access time 初始地址消息 Initial Address Message IAM 初始地址信息 initial address information 初始化报文 initial message 初始化信道分
电信英语
We have more tonight on the subject of spending. But this has to do with the American household budget. Tonight, in the State of California alone, gasoline is now at an all-time record-high price per gallon, and food prices are rising sharply these
商业报道2007年
Music group EMI has announced a U-turn that would make it easier for many to download and listen to digital music. Now for the first time it's going to sell tracks without digital rights management or DRM. It's a technology that allows media compani
商业报道2007年
Script: am Jim Ledbetter with CNN Money, I am here with Fortunes David Kirkpatrick. Today, we are gonna talk about the phenomenal rise in Chinese Internet Stocks. David, welcome. Okay, lets go. Just in a matter of a week, ten days' time, some of the
商业报道2007年
BEIJING, May 13 (Xinhuanet) - China's central bank announced on Saturday it would lower the reserve requirement for commercial lenders by 50 basis points, the second time it has taken such action this year to inject more market liquidity and shore up
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China's sex ratio is quite worrying nowadays. According to census data, China's sex ratio at birth was 108 males to every 100 females in the early 1980s, only slightly above the natural rate of 103 to 107. In 2000 the ratio was 116.9 males to 100 fem
英闻天下
the previous show Don and Yael discussed communication from other worlds. Well, as it turns out if E.T. does try to phone it will be much more complicated than can you hear me now? D: Okay, Yael, so suppose one day scientists pick up a transmission t
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The modern world clamors for your attention in ever-louder ways, a deluge that can distract you from your course. 在现代社会里，各种喧闹扰乱着你的心绪，像洪水般冲荡着自己的进程。 It takes self-discipline to persevere a
英语听力广播—Listening
But heres a mystery: When you press pause on the VCR, the screen doesnt go blank. Instead, you get a frozen image. Remember, you need a changing magnetic signal to create even a still video image. If the video tape isnt moving, where is this changing
英语时差8，16
Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have
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How Your VCR holds a Note VCR-盒式磁带录像机VCR是Video Cassette Recorder的缩写盒式磁带录像机。就功能上而言，它是使用空白录像带并加载录像机进行影像的录制及存储的监控系统设备。VCR作为许多晚会
英语听力文摘 English Digest