标签：solar 相关文章
A study of a solar-powered blood pressure monitor finds it can be an effective tool in places where electricity and even batteries can be in short supply. A study in Africa found the monitors to be affordable and accurate. 对太阳能血压计的研究
VOA双语新闻 2010年11月
In terms of its diameter, which of these planets is about 11 times the size of Earth? 就其直径而言，以下哪个行星的直径大约是地球直径的11倍? Venus, Saturn, Jupiter or none of these? 金星，土星，木星还是都不是? The
CNN美国有线新闻2018年3月
Oh, man, thats incredible!.... A tour of the solar system wouldnt be complete without a visit to its largest planet, but with the grandest sights, biggest dangers and greatest mysteries all on the itinerary, it pays to brush up before blast off. Cons
自然百科2012年
Halfway there, you bump into the Asteroid Belt. It is not like in the movies where you are dodging asteroids at every second. It is a The space is very big and the asteroids are a long distance apart, so you could travel through it quite safely. The
自然百科2012年
By Barry Wood San Francisco, CA 03 May 2007 Today we present the first of a new weekly series of reports called Searching for Solutions. The series explores how governments, communities and individuals are trying innovative approaches to address long
2007年VOA标准英语（五月）
AS IT IS 2013-06-14 NASA Scientists Still Dream of, and Plan for, Human Travel to Mars From VOA Learning English, this is As It Is. Welcome back. Im Caty Weaver. On the show today, we look into the future of space exploration. The American space agen
2013年VOA慢速英语(六)月
Model Home Shows off Renewable Energy Technology in Senegal In Senegal, a model green house is showcasing renewable energy technologies as part of efforts between the Israeli and Senegalese government to improve food production and reduce dependence
VOA标准英语2011年(五月)
Experts: Solar Power Could Soon Pose Economic Threat to Electric Utilities 专家称太阳能将给电业带来经济威胁 After decades as an expensive and sometimes impractical source of energy, experts say solar power is finally coming into its o
VOA标准英语2014年(七月)
LULU GARCIA-NAVARRO, HOST: In our final installment on how communities around the world are adjusting to climate change, we go to India. Pollution there from the burning of fossil fuels is encouraging the spread of solar energy. But as NPR's Julie Mc
2017年NPR美国国家公共电台8月
Chaotic Orbits Could Cause Catastrophic Collision Isaac Newton said, I can calculate the motion of heavenly bodies, but not the madness of people. He meant that while people can be unpredictable, the planets are just the oppositethey glide through sp
2018年科学美国人4月
The solar system is a hostile place. Earth is under attack from deadly cosmic radiation. Life here is only possible, because it's protected by the magnetosphere, an invisible force field that cocoons the planet. But new evidence reveals that this vit
自然百科2011年
Imagine boarding a flight to Saturn, what would you need to know before traveling? The best ringside vantage points? The must-see moons? Think of this as your personal guide to the splendor of the Saturnian system. A wandering spot of light twice as
自然百科2012年
Have you ever fantasized about going somewhere special? Somewhere far from crowds, off the beaten track. Somewhere out of this world? Is it time to catch a rocket to the Red Planet? Mars is filled with mysteries, Volcanoes 75,000 feet tall, huge cany
自然百科2012年
By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how
VOA常速英语2007年（十一月）
By Jessica Berman Washington 19 March 2008 For the first time ever, astronomers using the Hubble space telescope have discovered the presence of the organic molecule methane in the atmosphere around a planet outside our solar system. While astronomer
VOA标准英语2008年（三月）
Mobile Clinics Bring Health Care to South Africa Countryside 移动诊所为南非农村带来医疗保障 MOKOPANE, SOUTH AFRICA South Africa has a serious lack of healthcare facilities in rural areas. In many cases, people must walk for kilometers
VOA常速英语2013年(十一月)
Teamwork Critical To Solar Decathlon Success 太阳能十项全能竞赛的成功团队合作至关重要 LOS ANGELES Homes of the future are being displayed in Irvine, California at the U.S. Department of Energy's Solar Decathlon. It's a biennial ev
VOA常速英语2013年(十月)
By David McAlary Washington 07 March 2006 NCAR scientists Mausumi Dikpati (left), Peter Gilman, and Giuliana de Toma examine results from a new computer model of solar dynamics Researchers predict tha
2006年VOA标准英语（三月）
By Noel King Kigali 04 January 2008 Post-election violence in Kenya has crippled the delivery of fuel to Rwanda, forcing authorities to institute petroleum rationing. Rwandans who depend upon their cars for business say they fear a continuation of th
VOA标准英语2008年（一月）
Young MBAs Compete to Solve Global Problems Solving the worlds most pressing social challenges takes passion, dedication, innovation and a good business plan, which is the idea behind the Hult Global Case Challenge. Hult International Business school
VOA标准英语2011年(十月)