单词：doppler broadening in laser
单词：doppler broadening in laser 相关文章
Successful Debaters Earn Business Benefits 成功的辩论能带来商业利益 Over the last few weeks we discussed a method for teaching debate to English learners. Debate is a valuable way to practice communicating. It can also bring long-lasting
2015年VOA慢速英语(五)月
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 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
VOA标准英语2014年(二月)
Improving your vocabulary in English - or any language -requires commitment.Writing long lists of new words is not really an efficient way to improve your vocabulary. The technics described in this article will help you improve your vocabulary, but y
英文语法词汇
The newness of the situation and the range of decisions youll face could leave you confused. Think about what you want from college and from friends. Study after breakfast, between classes, whatever works best for you. Dont cut off all social contact
英语时差8，16
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 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
2005年NPR美国国家公共电台
By Tom Rivers London 28 September 2007 For the first time in the history of North America's National Hockey League, the season's opening game will be staged in Europe. On Saturday, the defending champion Anaheim Ducks will face off against their cros
2007年VOA标准英语（九月）
1. New York City fans of giant cups full of sugary soft drinks can continue to feed their cravings. A judge struck down the 16-ounce size limit for sodas and other sweet drinks. But Mayor Michael Bloomberg still defends his idea. 2. The Senate Judici
美联社新闻一分钟2013(三月)
AS IT IS 2013-08-19 Survival Shelters, Tornadoes and Old Ironsides 生存避难所,龙卷风和老铁壁 Hello, and welcome to the Monday edition of As It Is, our daily show for people learning everyday American English. 大家好，欢迎大家收听周
2013年VOA慢速英语(八)月
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
AS IT IS 2013-09-11 Rising Temperatures Could Mean More Wildfires 不断上升的气温可能会意味着更多的森林大火 From VOA Learning English, welcome to As It Is! Im Mario Ritter. On our show today, we hear from two weather experts. We he
2013年VOA慢速英语(九)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
How to Raise a Reader From VOA Learning English, this is the Health Lifestyle report. For some people, the warmest memories from childhood come from being read a great story. But reading to children does more than create warm memories. It develops ch
2015年VOA慢速英语(四)月
Success In Debating and Business Over the last few weeks we discussed a method for teaching debate to English learners. Debate is a valuable way to practice communicating. It can also bring long-lasting rewards outside the classroom, especially for p
2016年VOA慢速英语(四)月
生活大爆炸第一季第六集_1：The Middle Earth Paradigm -Rajesh: Okay, if no one else will say I will. We really suck at paintball. 好吧，如果没人说那就我来说。我们在彩弹比赛中的表现实在太差了！ -Howard: That wa
生活大爆炸第一季
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）
Doppler on Wheels Rolls Into Tornados Doppler radar reads the weather based on reflections from items moving through the air. Joshua Wurman was the first to put the technology on wheels and drive it directly into the path of a tornado. I invented Dop
VOA常速英语2013年(八月)