单词：laser optical demonstration instrument
单词：laser optical demonstration instrument 相关文章
By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca
VOA常速英语2008年（四月）
EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can
2013年VOA慢速英语(二)月
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
Scientific American(五)月
DIALOG 38 (Sound of piano playing) laurance--Listen!Somebody's playing the piano. soony--Yeah,it sounds nice,doesn't it?I wish I could play a musical instrument. laurance--Don't you play the violin? s
英语经典听力对话
It's not very often that you get the opportunity to try out many kinds of instruments. Have you ever blown a bassoon? Have you ever strummed an electric guitar, or tried a set of drums? We had the chance to do that on Saturday. The Woodshouse Conserv
英语博客 A cup of English
The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network
2017年VOA慢速英语(七)月
I really wish I could play a musical instrument. I cant. I had a few music lessons when I was a kid, but I didnt keep them up. I really regret that now. I get quite jealous of people who can play a musical instrument. Its a wonderful ability. I hope
纯正英语一分钟
EXPLORATIONS - The Guitar: an Instrument for Any Kind of Music By Paul Thompson Broadcast: Wednesday, May 25, 2005 (MUSIC) VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Phoebe Zimmermann with Explora
Explorations
The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci
2013年VOA慢速英语(五)月
EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one
2012年VOA慢速英语(一)月
Reporters on the Streaming down the Yangtze River tour have arrived in Hubei's capital, Wuhan. As part of their time there, the reporters have visited the East Lake Hi-tech Development Zone, a national innovation demonstration zone, which is also kno
2018CRI中国国际广播电台
A: What kind of music do you enjoy listening to? B: I enjoy listening to all kinds of music. A: What kind? B: I like to listen to Rock and RB. A: Why do you like that type of music? B: I like the kinds of instruments that they use. A: I think that's
英语闲谈
-Leonard：So, if any ofyou are considering going into experimental physics, my door is always open. consider：考虑 go into：从事 experimental physics：实验物理学 如果你们对应用物理有兴趣，随时欢迎。 Once again, I'm sorr
生活大爆炸第二季
By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti
VOA常速英语2007年（十一月）
China's Tibet Autonomous Region is about to achieve a universal coverage of fibre-optical broadband service ahead of its schedule. As China further rolled out its universal broadband project, Tibet's broadband service is looking to reach 98% of admin
2018CRI中国国际广播电台