单词：laser beam sweep
单词：laser beam sweep 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）
澳洲流行天后 Kylie Minogue 最新MV《Crystallize》！小女孩演绎还没当歌星前的凯莉，拿着梳子对着镜子忘情歌唱，热舞。一代歌后的成长史呀，很励志的一首歌，有梦想就要去追逐。 歌词： When
流行英文歌曲
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
I'd like to start with a short story. 我想先讲个故事。 It's about a little boy 有个小男孩 whose father was a history buff 他父亲是个历史爱好者， and who used to take him by the hand 常牵着他的手 to visit the ruins of an
TED演讲科技篇
beam, [bi:m] n 大梁（建筑中用作支撑的木材、金属或石头）；光柱；臀围；平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,
不择手段背单词
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
Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma
英美文化
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
Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如，美国开拓西部的过程给美国语言增添了不少色彩。可
美国习惯用语
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 science of the future to eve
英语语言学习
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）
今天我们要学的词是sweep。 Sweep, 大家都知道，是扫地的意思，不过，sweep还有另外一个意思，指赢得比赛的全部胜利。 Jamaica became the first nation in Olympic history to sweep the gold, silver and bronze medal
英语单词荟萃
今天我们要学的词是sweep。 Sweep, 大家都知道，是扫地的意思，不过，sweep还有另外一个意思，指赢得比赛的全部胜利。 Jamaica became the first nation in Olympic history to sweep the gold, silver and bronze medal
英语每日一词
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
英语新闻
BEIJING, Nov. 20 (Xinhua) -- A cold front will sweep most parts of China over the next three days, bringing strong winds and temperature drops, the National Meteorological Center forecast Tuesday. From Wednesday to Friday, temperatures will drop from
英语新闻
Strong cold front to sweep China BEIJING, Oct. 14 (Xinhua) -- A strong cold front coming from northwest China's Xinjiang Uygur Autonomous Region will drop temperatures in most parts of China in the next three days, the country's national observatory
英语新闻
Cold snap to sweep through China BEIJING, Oct. 28 (Xinhua) -- China's central and eastern regions will experience temperature drops in coming days, while the southern parts will receive moderate to heavy rain, the national meteorological watchdog for
英语新闻
Science and technology 科学技术 Solar power from space 太空太阳能 Beam it down, Scotty 老兄，传下来吧 Harvesting solar power in space, for use on Earth, comes a step closer to reality 在太空获取太阳能以供地球之用:梦想距
经济学人科技系列
BEIJING, Feb. 15 (Xinhua) -- A strong cold front is expected to sweep most of China, dragging down temperatures by up to 14 degrees Celsius in some areas. The cold front will lower temperatures by 6 to 10 degrees Celsius in most parts of China during
英语新闻