类比视觉信号

健康生活:激光矫正近视安全存疑

Optical experts in Shanghai have reassured patients that laser eye surgery, or LASIK (laser-assisted in situ keratomileusis), is the safest method to treat adult myopia, following a leading Taiwanese eye doctor said he would stop LASIK procedures aft

发表于:2018-12-12 / 阅读(138) / 评论(0)

实用英语

SSS 2011-05-23

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

发表于:2018-12-24 / 阅读(175) / 评论(0)

Scientific American(五)月

电信专业英英词典Q

发表于:2019-01-03 / 阅读(150) / 评论(0)

电信英语

电信专业英英词典I-1

I-MAC isonchronous media access controller IDN integrated digital network IEC International Electrotechnical Commission Impairments Impairments is the (e.g., transmission channel and signal impairment

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电信英语

电信专业英英词典M-2

Microwave In telecommunications, microwaves are frequencies above 1 GHz. MIPS million instructions per second Modems (MOdulator/DEModulators) Modems are devices that transform digital signals generate

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电信英语

电信专业英英词典M-3

Multimode Optical Fiber(S) Multimode fibers, with much wider cores than single mode fibers, allow light to enter at various angles, and reflect (bounce off of) core-clad boundaries as electromagnetic

发表于:2019-01-03 / 阅读(159) / 评论(0)

电信英语

电信专业英英词典D-4

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

发表于:2019-01-03 / 阅读(229) / 评论(0)

电信英语

电影版《三生三世十里桃花》即将于暑期上映

After the popular TV series Eternal Love, adapted from the online novel Three Lives Three Worlds, Ten Miles of Blossoms, a movie adaptation of the same book will hit Chinese theaters in the summer. 继热播电视剧《三生三世十里桃花》之后

发表于:2019-01-07 / 阅读(133) / 评论(0)

英语新闻

2007年VOA标准英语-Study Shows Babies Use Visual Cues to Recognize

By Jessica Berman Washington 24 May 2007 Scientists have always thought that babies learn language by hearing them, but a new study provides evidence that infants as young as four months can distinguish between different languages being spoken by usi

发表于:2019-01-13 / 阅读(167) / 评论(0)

2007年VOA标准英语（五月）

VOA常速英语2014--Hollywood Visual Effects Go Global 好莱坞视觉特效走向世界

Hollywood Visual Effects Go Global 好莱坞视觉特效走向世界 LOS ANGELES Many of todays Hollywood blockbuster movies include stunning visual effects. Most of those effects used to be produced in Hollywood, but that has changed. Now, one film

发表于:2019-01-14 / 阅读(147) / 评论(0)

VOA标准英语2014年(五月)

【电影预告片填空】地球引力

_______1________? What? The sunrise. Terrific. No! Houston, Dr. Stone is off structure! Listen to my voice! _______2_______! I can't! I'm losing visual of you. _______3_______! I can't breathe! Grab ahold, grab anything! What do I do? What do I do? N

发表于:2019-01-23 / 阅读(171) / 评论(0)

英文电影预告片填空

VOA慢速英语20060815b

SCIENCE IN THE NEWS - Rethinking the Personal Computer in a World That Centers on the InternetBy Caty Weaver and produced by Mario Ritter Broadcast: Tuesday, August 15, 2006 VOICE ONE: This is SCIENCE

发表于:2019-01-30 / 阅读(177) / 评论(0)

2006年慢速英语（八）月

US, China signal new phase for ties

BEIJING, March 13 (Xinhua) -- Both China and U.S. signaled that the world's two biggest economies should explore a road of new-type relations. The new type of relations between major powers should be based on mutual respect, cooperation and seeking w

发表于:2019-02-03 / 阅读(171) / 评论(0)

英语新闻

Forecasts signal late-week launch of Tiangong-1

BEIJING, Sept. 26 (Xinhuanet) -- Weather forecasts showed that Thursday or Friday might be suitable for launching the Tiangong-1 spacecraft, experts said. The unmanned spacecraft, part of China's first spacecraft rendezvous and docking mission, was s

发表于:2019-02-03 / 阅读(244) / 评论(0)

英语新闻

学个词Learn a Word 第1349期　signal

今天我们要学的词是signal。 Signal, 作为动词，意思是显示。 The number of Americans filing for unemployment benefits for the first time fell to the lowest level in nearly six months, signaling a slight improvement in the job market

发表于:2019-02-05 / 阅读(162) / 评论(0)

英语单词荟萃

激光矫正近视后遗症多多

激光矫正近视后遗症多多 Optical experts in Shanghai have reassured patients that laser eye surgery, or LASIK (laser-assisted in situ keratomileusis), is the safest method to treat adult myopia, following a leading Taiwanese eye doctor said

发表于:2019-02-05 / 阅读(173) / 评论(0)

实用英语

儿童智能手表抢滩节日玩具市场

当很多成人还在等待苹果的iWatch上市，孩子们已经可以拥有自己的智能手表了。Kidizoom推出一款名为Vtech的儿童智能手表准备抢滩节日玩具市场。这款儿童智能手表售价60美元，屏幕1.4英寸，可

发表于:2019-02-06 / 阅读(238) / 评论(0)

阅读空间

好莱坞视觉特效走向全球

LOS ANGELES Many of todays Hollywood blockbuster movies include stunning visual effects. Most of those effects used to be produced in Hollywood, but that has changed. Now, one film can include visual effects produced in many different countries. Tomm

发表于:2019-02-06 / 阅读(161) / 评论(0)

英语新闻

幽默笑话：视力训练

Visual Training The squad were having visual training． One smart recruit was asked by the officer to count how many men composed a digging party in a distant field．The party was so faraway that the men appeared as mere dots， but unhesitatinglyt

发表于:2019-02-25 / 阅读(127) / 评论(0)

趣味英语

TED演讲:科技为人道主义带来的变化

The humanitarian model has barely changed since the early 20th century. 人道主义的模型自从20世纪初期就几乎没有改变过 Its origins are firmly rooted in the analog age. 它的起源在模拟时代就根深蒂固了 And there is a ma

发表于:2019-03-04 / 阅读(197) / 评论(0)

TED演讲教育篇

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a coat of

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adder stones

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all-optical wavelength converter