单词：Upconversion Phosphors And Infrared Laser Sensor Quantex
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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
New Laser Heals Wounds Faster, Without Scarring 新激光治疗伤口好的更快且没有疤痕 All surgical patients want their wounds to heal quickly with the least possible scarring. But traditional stitches, clips and more modern chemical glues
VOA标准英语2015年(四月)
Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this
环球英语 Spotlight
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi
Scientific American(十二)月
Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of
2015年Scientific American(一)月
One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
2017年Scientific American(二)月
Very roomy. For a single-seat fighter it's spacious. Plenty of room to lay out stuff we carry with us. The nose is cut and you won't see any perpendicular surfaces go around. The four probes in the front are not machine guns. And they are not hologra
国家地理2007年
May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the wipe. It smells sweet. Mom: That's OK. I prefer the hand-dryer. Oh, where is the switch? May:
英语大赢家下册
Captain, you wanted to see me? 上尉，你找我 Dai tells me that you're doing a fair job of taking over for Scott. He did? 戴告诉我你在找人接手斯科特的工作。是吗 I can only hope he's right. 我只能希望他是对的 We think t
陨落星辰第二季
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
This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec
Scientific American(三)月
在宾馆的洗手间里，妈妈和阿美碰到一些小问题，干手器坏了。到底怎么解决呢？ Listen Read Learn May: Oh, Mom, do you know where the liquid soap is? Mom: Right here, in that beautiful bottle. Push the button, you'll get it. May: Oh, Mom, you can use the w
英语口语大赢家
Hearing Aid Common in Europe Turns Up Volume in US More than 10 percent of Americans have some form of hearing loss. Even with a hearing aid, deciphering sounds in places like airports, theaters and places of worship can be tough. However, a not-so-n
VOA标准英语2011年(十二月)
There was a day, about 10 years ago, when I asked a friend to hold a baby dinosaur robot upside down. 大概10年前的一天，我让一个朋友头朝下地握持一个小恐龙机器人。 It was this toy called a Pleo that I had ordered, and I wa
TED演讲科技篇
Remember joysticks? Those old things you used to control your game characters? Microsoft is hoping that youll forget all about them this winter. Earlier this month, it unleashed Kinect, a controller-free motion-gaming device for the Xbox 360 console.
中英双语新闻
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）
By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method
2006年VOA标准英语（七月）
Voice 1 Thank you for joining us for Spotlight! Im Ryan Geertsma. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Fires like this
环球英语 Spotlight