单词：laser density probe
单词：laser density probe 相关文章
By Jessica Berman Scientists with the U.S. space agency NASA have begun investigating the crash landing Wednesday of the Genesis space capsule in Utah. The mission came to a disastrous end when a para
VOA2004（下）--健康科技
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)
今天我们要学的词组是probe。 Probe的意思是彻底调查。伊拉克政府最近调查萨达姆被处决时为什么会出现嘲弄等混乱局面，以及处决过程是如何被秘密录像的，Iraq is probing the disorder during Sadda
英语每日一词
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
-Im Chris Kaufman and I here with Justin Kasper, who works at Smithsonian, hes an astrophysicist at the Smithsonian. And he's won a project thats gonna launch a probe at the sun, specifically the Solar Wind Electrons Alphas and Protons investigation,
万花筒2013年
Some dinosaurs were really huge, and now we may have a better way to estimate just how heavy these giants were. Researchers have developed a method to weigh dinosaurs based on laser scans of their skeletons. The study is in the journal Biology Letter
Scientific American(六)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
NASA Probe Proves Einstein Right Albert Einstein was right. The U.S. Space Agency (NASA) released data this week from its Gravity Probe B spacecraft, whose primary mission while in Earth's orbit was to test Einstein's 1916 Theory of Relativity. While
VOA标准英语2011年(五月)
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英语单词荟萃
The U.S. space agency(代理中介) has released the first ever image taken of the surface of Mercury from a spacecraft orbiting the planet. The black and white image, posted on the NASA website Tuesday, shows a surface pocked with craters of varying
英语新闻
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）
By Paul Sisco Washington 14 May 2008 The U.S. space agency's Mars probe is within weeks of landing near the Red Planet's north pole. NASA scientists in Washington recently talked about what they call the mission's seven minutes of terror. That is how
VOA标准英语2008年（五月）
By Derek Kilner Nairobi 20 March 2008 Members of an international commission tasked with investigating the conduct of Kenya's disputed December elections have arrived in the country and have been sworn in. Meanwhile, concerns are emerging about how a
VOA标准英语2008年（三月）
China plans to launch Chang'e-4 lunar probe to the dark side of the moon in 2018, as announced by China's State Administration of Science, Technology and Industry. Liu Jizhong, director of the lunar exploration program and space engineering center, s
2016CRI中国国际广播电台
BEIJING, April 21 (Xinhua) -- More inspection teams have been sent to investigate the incident of contaminated drug capsules and find out those held responsible, said the State Food and Drug Administration (SFDA) Saturday. Inspection teams from sever
英语新闻
BAIKONUR, Kazakhstan, Nov. 9 (Xinhua) -- Russia's Phobos-Grunt probe and China's Yinghuo-1 satellite were launched from the Baikonur cosmodrome in Kazakhstan on a Zenit-2SB rocket at 00:16 am Moscow time Wednesday (2016 GMT Tuesday). The main aim of
英语新闻