单词：self-seeded semiconductor laser
单词：self-seeded semiconductor laser 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）
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
tied thirty-thirty 网球的分数是从love(0分)算起，然后15,30,40分，最后则是gameo假如两个球员都拿到40分，就称为deuce，而接下来的那分则叫做advantage。此时必须超前两分，才能赢得该局。 match point
大忙人学社交口语
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
1. Victory within reach. President Barack Obama set his sights on rallying House Democrats Saturday for a final health care push for Sunday's vote. He called the bill the single most important step US government has taken on health care since Medicar
美联社新闻一分钟2010(三月)
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
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 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）
351. odd a. 奇特的,古怪的；奇数的 352. omit vt. 省略 353. opponent n. 敌手,对手 354. opportunity n. 机会,时机 355. orchestra n. 管弦乐队 356. semester n. 学期；半年 357. se
英文语法词汇
NEW YORK, Sept. 5 (Xinhua) -- Eleventh seed Jo-Wilfried Tsonga rallied to beat Mardy Fish, the eighth-seeded American 6-4, 6-7 (5), 3-6, 6-4, 6-2 on Monday, reaching US Open quarterfinals for the first time. Fish was trying to make it past the fourth
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CHANGZHOU, Jiangsu Province, Sept. 17 (Xinhua) -- Chinese badminton team were on verge of another clean sweep after last month's world championships as they had secured one-two in three of the five events on Saturday. Shuttlers from other teams could
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EASTBOURNE, England, June 13 (Xinhua) -- Venus Williams ended her five-month break with a three-set victory over Andrea Petkovic 7-5, 5-7, 6-3 at the Eastbourne WTA grass court on Monday. It felt fitting, I guess, Williams, 30, said of playing Petkov
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WIMBLEDON, England, June 25 (Xinhua) -- Roger Federer, Rafael Nadal and Serena Williams all won in straight sets Saturday to move into the last 16 at the Wimbledon Championship. Six-time champion Federer beat David Nalbandian 6-4, 6-2, 6-4 to move cl
英语新闻
NEW YORK, Sept. 9 (Xinhua) -- Defending champion Rafael Nadal crushed 29-year-old Andy Roddick on Friday, setting up a quarterfinal clash against World No. 4 Andy Murray as the Scottish eliminated another American John Isner. Considering the other tw
英语新闻
DEN BOSCH, Netherlands, June 13 (Xinhua) -- Kim Clijsters went through Monica Niculescu of Romania 7-5, 7-5 to reach the second round on Monday at the Den Bosch WTA tournament, a grass-court warmup for Wimbledon. After leading 4-2, top-seeded Clijste
英语新闻
NEW YORk, Sept. 1 (Xinhua) -- Serena Williams and last year's French Open champion Francesca Schiavone played red hot matches in U.S. Open as Williams allowed only one game and Schiavone surrendered two in cuising into third round on Thursday. Willia
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WASHINGTON, Feb. 22 (Xinhua) -- Bubba Watson came out the only survivor as other top 10 seeds all fell at Friday's second round of the Match Play Championship, following world No. 1 Rory McIlroy and 14-time major champion Tiger Woods' exit on Thursda
英语新闻
Zheng Jie loses first match in Tournament of Champions SOFIA, Oct. 30 (Xinhua) -- Chinese Zheng Jie stumbled in her first match in the Tournament of Champions, losing 2-6, 6-4, 7-4 (4) to home player Tsvetana Pironkova. Seeded sixth, Zheng failed to
英语新闻
Olympic champion Liu knocked out of badminton Denmark Open ODENSE, Denmark, Oct. 19 (Xinhua) -- Sixth seeded Juliane Schenk of Germany caused a huge upset beating second seed Li Xuerui of China, who won gold at the London Olympics, in two sets 21-19,
英语新闻
MELBOURNE, Jan. 21 (Xinhua) -- A victory of 6-4, 7-6(4), 6-2 over Canadian Milos Raonic helped Roger Federer of Switzerland reach another Grand Slam quarterfinals here on Monday. The 17-time Grand Slam champion gave up only five points on his first s
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