单词：laser pumped maser
单词：laser pumped maser 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）
(Hey, how are you? How are you doing? What's going on?) Taylor Swift: Seeing Britney tonight will be amazing. I met her once when I was 15, and she just came off like such a sweet person. And I want her to win. I want Britney to take the world over a
万花筒2008年
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)
图片1 Everyone at Culips is especially pumped because the summer weather has arrived in Montreal. So, we thought we would make an episode all about feeling excited and full of energy! Here we look at the expressions of pumped up, fired up, stoked,
英语博客-北美风情
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
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
By Jessica Berman Washington 19 November 2009 A new study has found that oceans are struggling to help regulate climate as more carbon dioxide, a leading greenhouse gas, is pumped into the atmosphere. The ocean absorbs more than one-quarter of all o
VOA标准英语2009年(十一月)
Lesson Nineteen 听力部分 Dictation: Please prepare your paper and pen. There are really __________ for _____ wine ______-_______________ a good corkscrew, ____, _______________, __________ the ____ of _______. The ______________ that most America
王强口语 第二册
[0:0]lable laboratory lad lag标签,标记 实验室 男孩,小伙子 落后,滞后 [1:9.3533]lamb landlord landscape lane羔羊，小羊 地主，房东，店主 风景，景色 小路，小巷 [1:52.8522]largely laser latter laughter大部分，主要地 激光器 后者的，末了的 笑，笑声 [2:36.6
闭着眼睛飘单词 四级词汇
NOEL KING, HOST: Centuries' worth of shoes are getting oohs and aahs at the New-York Historical Society. The shoes are from the personal collection of shoe designer Stuart Weitzman. The exhibit is called Walk This Way, and NPR special correspondent S
2018年NPR美国国家公共电台7月
Dialogue 2 Xiao Gao: So? What did you think? Wasn't it fun watching these movies? 小高：怎么样，你觉得看这些电影有意思吗？ Jingjing: Yeah, it was,but I'm not completely satisfied yet. 京晶：确实挺有意思的，但是我还意
英语PK台
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）
《Pumped Up Kicks》是该独立流行乐队Foster the People发行的第一支单曲，并且收录在了乐队的第一张同名EP中。这支单曲的曲子写于歌词前，节奏明快带有重低音并且混合了电子和原声两种不同的元
英文特辑精选
KELLY MCEVERS, HOST: If the story of Russian influence in the 2016 election makes you uneasy, Clint Watts will not make you feel much better. The former FBI agent is now a senior fellow at the Foreign Policy Research Institute. He testified before th
2017年NPR美国国家公共电台4月
现代汉语中有不少词都是英语外来语，High这个词就常和汉语一起混用，可是它真正的意思并不是开心，今天Jenny和Adam要来谈谈美国人怎么使用high。 High有什么问题？ 大家都很熟悉high的中国式
美国文化脱口秀
Most of the oil has now been pumped out of the ship, the Rena, which hit a reef on October 5th. The ship carried 1700 tonnes of heavy oil. 350 tonnes leaked into the sea. This oil killed more than 1300 sea birds and polluted the sand and rocks around
新西兰英语
今天早上 Larry 和李华和一对朋友 Charles and Lisa 约好了一起去打网球．李华会学到两个常用语： pumped 和iffy. LL: I'm really pumped about today's tennis match. How about you, Li Hua? LH: 你对今天的比赛怎么啦？ Pumped？你是不是说你很紧张啊？ LL: No, I'm
美国之音《流行美语》