单词：autoreflector
单词：autoreflector 相关文章
In 1970, the Soviet Union put a laser reflector on the moon, carried by a rover. A few months later, it disappeared. Some speculated that the rover had fallen into a crater or parked in such a way as to render the reflector inaccessible. Now after 40
Scientific American(四)月
据《科学》杂志报道，苏联的月球车40年前在月球表面留下了激光反射器，虽然经过多年的搜寻科学家始终没有发现激光反射器的踪迹。 4月22日，一组物理学家终于发现了来自反射器的微弱闪
60秒科学
Gain - This is an increase in signal power, due to a boost from an electronic device. Garbage - These are unwanted characters that appear because of either incorrect settings or noise. Gate - These ar
电信英语
The fortunes of American and Japanese automakers are reversing. The three big automakers in the United States - General Motors, Ford and Chrysler - all are profitable now after struggling financially(金融上) during the world economic downturn that
英语新闻
Top executives from the three major U.S. automakers pressed Congress for aid to prevent their beleaguered industry from collapsing and causing additional harm to the U.S. economy. Lawmakers are considering an aid package to automakers, but prospects
VOA标准英语2008年(十一月)
Representatives of the White House and the Congress say they are making progress in negotiations on rescuing the embattled U.S. auto industry. Meanwhile, stock prices in New York have ended a two-day surge. U.S. Senate Majority Leader Harry Reid say
VOA标准英语2008年(十二月)
Some Republicans in the U.S. Senate say they will block a plan to rescue the country's three major auto companies. Meanwhile, new claims for unemployment benefits reached their highest level in 26 years. Sen. Richard Shelby, center, accompanied by,
VOA标准英语2008年(十二月)
U.S. auto company executives returned to Capitol Hill Friday to renew appeals for billions of dollars in emergency loans. They faced skeptical questions from members of the House Financial Services Committee dissatisfied with the automaker's restruc
VOA标准英语2008年(十二月)
Photo: VOA Auto hi-tech is set to make big inroads in 2010 After a tumultuous year for the auto industry, car makers are looking for a fresh start in 2010. Industry experts say the New Year promises to be a challenging time for automakers as they loo
VOA标准英语2010年(一月)
The Five-hundred-meter wide Aperture Spherical Telescope, or FAST, is now operational in the mountains of Guizhou in southwest China. FAST has been designed to help Chinese researchers better understand our universe, as well as probe the cosmos for e
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Bart's upstairs neighbor was driving him nuts. He made all kinds of strange noises at all kinds of strange hours. If I tell my neighbor he's noisy, he won't believe me, Bart thought. He'll believe me only if he lives downstairs and hears himself upst
英文短篇故事（纽约）
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）
With congressional hearings set Thursday and Friday of this week in advance of a vote on lending money to the beleaguered U.S. auto industry, General Motors says it needs money almost immediately. VOA's Barry Wood has more on the controversy over go
VOA标准英语2008年(十二月)
By Mil Arcega Washington, DC 11 January 2007 watch US Auto Show Hollywood celebrities such as Carmen Elektra are adding glamour and excitement to the event. You know, entertainment merging with automobiles, music, fashion. It's really cool. I think
2007年VOA标准英语（一月）
SANTIAGO, Jan. 10 (Xinhua) -- Qatari auto racer Prince Nasser Al Attiyah won Day 6 of the legendary Dakar Rally Thursday, behind the wheel of a Buggy. Al Attiyah won the sixth stage of the rugged off-road race, between the Chilean cities of Arica and
英语新闻
With profit margins in the Chinese auto industry continuing to erode, a number of joint ventures are looking toward China's less-developed western regions as an area to shore up their bottom lines. CRI's Hu Jia has more. Vehicle output in the Chengdu
世界各地新闻集锦
Three years after approving government bailouts for two major U.S. automakers, President Barack Obama is proclaiming the industry's revival. The president also has created a government unit to investigate allegations of unfair trade by other countrie
英语新闻
The auto fleet in the United States is shrinking. For the first time since World War II, more used cars were scrapped than new cars sold in 2009. The fleet decreased from an all-time high in 2008 of 250 million vehicles to 246 million last year. Driv
VOA标准英语2010年(一月)
BEIJING, July 11 (Xinhua) -- China's automobile sales hit 9.6 million units in the first half of 2012, up 2.93 percent year on year, data released on Wednesday by the China Association of Automobile Manufacturers (CAAM) showed. Auto output during the
英语新闻
The construction of the project was started in 2011 with an investment of 1.2-billion yuan, or about 180 million US dollars. The 500 metre Aperture Spherical Telescope, or FAST, is the size of 30 football fields. It's located in a hollow that was for
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