单词:nondestructive laser analysis
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This is Whats Trending Today When it comes to weather, it is hard to sound more frightening than to call a storm a bomb cyclone. 谈到天气,很难听到什么比炸弹旋风更可怕的了。 But that is how weather experts are describing a huge
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
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
New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力 Parkinsons disease slowly destroys the brains ability to control the muscles, depriving the patients of their mobility. Researchers at the Mayo Cl
前面讲解了词性以及利用词性解题,下面这篇文章就为大家带来了一个练习,通过这个练习可以对这些方法更了解,希望可以帮助大家顺利备考四级选词填空。 EI Nino is the name given to the myster
Without laws the world would end. OK, maybe the actual Earth might not end, but life as we know it would end. Wed all end up fighting and killing each other. It would become the survival of the strongest, or perhaps the survival of the nastiest. If t
A Destructive Storm Allen: Are you all right? Monica: Yes, were fine, but that blizzard really caught us off guard, especially this time of year. Have you seen the news? Allen: I just watched it. Overnight, the storm felled over 30 trees in and aroun
Tornados are one of the most frightening weather phenomena on our planet. Not only are they unique in how they form, but also in how they are measured . A tornados intensity is defined by the Enhanced Fujita Scale. On this scale, the intensity of the
Without laws the world would end. OK, maybe the actual Earth might not end, but life as we know it would end. Wed all end up fighting and killing each other. It would become the survival of the strongest, or perhaps the survival of the nastiest. If t
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
New Wildfire Starts Near Los Angeles A dangerous wildfire has started in the Bel Air area of Los Angeles, California, as firefighters battle three other fires across Southern California. The latest wildfire reached the side of the busy Interstate 405
This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke
My thoughs can be so vicious Committed to a plan The fear becomes ambitious Taking me till I am gone I don't know how it starded Beating up myself I've come to realize I barely carry on each day This life is so destructive It's blowing out my mind My
This is the VOA Special English Health Report. Scientists continue to look for ways to deal with the deadly form of bird flu virus. Medical workers care for a bird flu patient in Medan, Indonesia, last year Researchers in Singapore, for example, hav
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
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
Are You Ready to Face the Music? Now, the VOA Learning English program Words and Their Stories. There are so many expressions in American English that sound pleasant but are not. Face the music is a good example. When someone says they have to face t
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
One of the more pervasive and destructive mental tendencies I've seen is that of focusing on what we want instead of what we have. It doesn't seem to make my difference how much we have, we just keep expanding our list of desires, which guarantees we
Surprising Benefits of Being Single 单身的好处 You can become more self-reliant. 变得更加独立 Have you ever been through a breakup so emotionally devastating that you couldnt function for weeks, or months, afterward? 你有没有经历过痛