单词：self-pulsating laser diode
单词：self-pulsating laser diode 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）
auxiliary anode 辅助阳极 auxiliary grid 辅助栅极 auxiliary jack 辅助塞孔 auxiliary memory 辅助存储器 auxiliary signal 辅助信号 auxiliary transmitter 备份发射机 available powe
电信英语
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
Flight control is Brazilian. 飞行管制是巴西人发明的。 So we went together with these guys and we basically put this exoskeleton together, 那么我们和这些患者一起我们把骨骼机器人组装好， 15 degrees of freedom, hydraul
TED演讲科技篇
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
Oksana Dragan A music disc jockey who honed his skills in fundamentalist Iran is now a fixture of the Washington D.C. music scene, particularly among the 28 thousand or so Iranians living in the Unite
VOA2004（上）--艺术专集
1135 、 晶体点阵；晶体格构；晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
英文名句短语
Declassify US government documents and witness testimony from former or retired US military personnel confirm beyong any doubt the reality of ongoing UFO incursions at nuclear weapon sites. When I say UFO, the witnesses have described this craft as d
CNN2010年(十)月
The other day my 3-year old God son and I were pillow fighting when he sat down, panting, and said with surprise, I can feel my heart beating! Sometimes it takes little kids to remind us just how amazing our bodies are. Scientists believe that an are
Scientific American(十一)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
We're going to go on a dive to the deep sea, 好了，我们即将潜入海底深处。 and anyone that's had that lovely opportunity knows that for about two and half hours on the way down, 任何一个有过这种美妙机会的人都知道，在这两
TED演讲教育篇
Russia's Kamchatka Peninsula is known for its volcanic and seismic activity, but not since the 1960s has a new geyser appeared here. A ranger in the Kronotsky Nature Reserve was the first to see the column of boiling liquid last month. Another observ
自然百科2009年
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）
Falling 一落千丈 After the burst of excitement that accompanied the release of Macintosh, 麦金塔电脑刚发布时引发了一阵热潮， its sales began to taper off in the second half of 1984. 但到1984年下半年，其销量就开始急剧
乔布斯传
ROME, Jan. 9 (Xinhua) -- Zlatan Ibrahimovic scored deep into injury time(伤停补时) to secure Serie A leaders AC Milan a thrilling 4-4 draw with Udinese at home on Sunday. Inter managed to make up their lost ground under newly- appointed coach Leo
英语新闻
BILBAO, Spain, April 26 (Xinhua) -- Fernando Llorente scored a last minute goal to qualify Athletic Club Bilbao for the final of the Europa League on Thursday. Llorente forced the ball home from close range following great work from Ibai Gomez to giv
英语新闻
Inter beat Catania to maintain pressure on Juventus ROME, Oct. 21 (Xinhua) -- Inter beat Catania 2-0 at home on Sunday to keep in touch with Italian Serie A pacesetters Juventus. Inter went ahead in the 28th minute when Antonio Cassano converted from
英语新闻
Man United hands nine-man Chelsea first league defeat of season LONDON, Oct. 28 (Xinhua) -- European champions Chelsea were hit by two red cards in an intensely contested match and defeated by Manchester United 3-2 at Stamford Bridge on Sunday. The v
英语新闻
High-tech sanitation 高科技环卫 Race to the bottom 抄底竞价 A rush to buy Japanese toilet-seats prompts soul-searching in China 赶着趟购买日本马桶盖引出中国的自我反省 JAPAN is often viewed with antipathy in China, but incr
经济学人文艺系列
The World Health Organization is calling for urgent action to make sure all people reach old age in the best possible health. To mark this years World Health Day, WHO says good health is essential for maintaining a good quality of life as people get
英语新闻