This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(78) / 评论(0) 分类 Scientific American(四)月

Agriculture Report - Improving 'Feed Efficiency' in Cattle 农业报道 - 提高牛的饲养效率 From VOA Learning English, this is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Animal feed is the bigge

发表于:2019-01-12 / 阅读(68) / 评论(0) 分类 2012年VOA慢速英语(十一)月

By Nancy-Amelia Collins Bali, Indonesia 13 December 2007 The head of the United Nations Climate Change Conference is warning that a deadlock between the United States and the European Union over greenhouse gas emission targets may derail the conferen

发表于:2019-01-16 / 阅读(59) / 评论(0) 分类 VOA常速英语2007年(十二月)

By Mike O'Sullivan Los Angeles 16 November 2007 Auto makers who are showcasing their latest models at the Los Angeles auto show are expanding product lines in the hope of staying competitive in a changing market. Mike O'Sullivan reports, carmakers fr

发表于:2019-02-06 / 阅读(58) / 评论(0) 分类 VOA常速英语2007年(十一月)

A little over a year ago, a fully automated container terminal began operation in the Chinese port city of Qingdao, using only robots and machines to load and unload shipping containers. Now the terminal, the first of its kind in Asia, has already se

发表于:2019-02-14 / 阅读(76) / 评论(0) 分类 2018CRI中国国际广播电台

China is now on the front lines of efforts to develop energy sources that can balance the goals of sustaining economic growth and protecting the environment. Decisive action is needed to strengthen policy frameworks across the country to reach that g

发表于:2019-02-18 / 阅读(68) / 评论(0) 分类 cctv9英语新闻2015年