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Global Warming and Ozone 全球变暖和臭氧 Could the coming century bring a new threat to the ozone layer? Discover one scientist's model of the effect of global warming and greenhouse gases on ozone -- on today's Earth and Sky. DB: This is Earth and S
(科普英语)Earth and Sky
Motor City Mapping Project Takes Aim at Detroit Blight DETROIT, MICHIGAN Urban and industrial blight as a result of Detroits economic decline has changed the look of the so-called Motor City and how it is perceived. But a new task force charged with
VOA标准英语2014年(一月)
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
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HONG KONG, Sept. 9 (Xinhua) -- The Hong Kong Polytechnic University (PolyU) announced Friday that its surveying experts had successfully developed methodologies for precise mapping of the Moon, after intensive analysis of the data captured by the Chi
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BEIJING, Jan. 15 (Xinhua) -- China is to survey the Diaoyu Islands in the East China Sea as part of a program of mapping its territorial islands and reefs, it was revealed on Tuesday. The first stage of the island surveying and mapping was launched i
英语新闻
BEIJING, May 23 (Xinhua) -- The Ziyuan III satellite, launched on Jan. 9 to produce high-resolution imagery for civilian use, has sent back visual data covering 45.79 million square km of the globe as of May 18, according to an announcement on Wednes
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