单词:uranium crystal laser
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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
Lesson 80 The Crystal Palace 水晶宫 First listen and then answer the question. 听录音,然后回答以下问题。 How many people visited the Great Exhibition of 1851? Perhaps the most extraor
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
The script of this programme 本节目台词 The Crystal Palace was a building made almost entirely of glass John: Hi there! Welcome to On The Town from a very interesting part of south London. I'm John, with me Oliver. We're at Crystal Palace. Oliver:
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
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
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
By Peter Heinlein United Nations 22 February 2007 The U.N. nuclear watchdog agency says Iran has failed to suspend uranium enrichment, in defiance of Security Council demands. From U.N. headquarters, VOA's Peter Heinlein reports the finding clears th
By Mil Arcega Washington, D.C. 29 January 2007 watch Georgian Uranium report Georgian authorities have disclosed the arrest of a Russian man last year on charges of smuggling contraband uranium. Russian scientists confirmed the radioactive material
Israel's Defense Minister Ehud Barak is calling for significant sanctions against Iran, saying it is clear the country wants to be a nuclear weapons power. Barak made the comments during a visit to Washington. Israel sees Iran as an existential threa
Analysts Dispute Iran's Uranium-Enrichment Claims The international community has demanded that Iran fully acknowledge all of its nuclear related activities, and halt any work toward acquiring nuclear weapons. But Tehran has responded by announcing t
By Nancy-Amelia Collins Sydney 07 September 2007 Russia has signed a deal to import Australian uranium for Russia's nuclear energy program. The two countries were quick to assure the world that the material would be used only for peacetime nuclear pu
By Paula Wolfson Washington 17 December 2007 President Bush says now that Iran has received an initial shipment of nuclear fuel for its Bushehr power plant from Russia, there is no need for Tehran to enrich uranium. VOA White House Correspondent Paul
By Marlene Smith After a week of delicate negotiations, the International Atomic Energy Agency's ruling body has adopted a resolution calling for Iran to suspend all uranium enrichment activities. The
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
By Phil Mercer Sydney 15 August 2007 Australia has ended its ban on uranium sales to India. The country has so far refused to sell the nuclear fuel to countries that have not signed the nuclear Non-Proliferation Treaty, but Foreign Minister Alexander
Iran says it needs uranium enriched to 20 percent to fuel a medical research reactor Elizabeth Arrott | Cairo 08 February 2010 Iranian President Mahmoud Ahmadinejad, wears eye protection goggles as he visits an exhibition of Iran's laser science, in
Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re