un. 矿物燃料烧活性
[网络] 化石燃料消耗量;化石燃料消耗

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. Its been known to cause respiratory diseases and even

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(一)月

Researchers get same yields with fewer fertilizers, pesticides Steve Baragona | Washington, DC 18 May 2010 Fossil energy use was compared among different crop rotation systems in a field experiment conducted between 2003 and 2008 in Boone Co., Iowa R

发表于:2019-01-13 / 阅读(46) / 评论(0) 分类 VOA标准英语2010年(五)月

Energy 能源 A: We've managed to reduce our energy consumption in our factory by about 15 per cent in the last two years. A:在过去的两年内我们已经努力把我们厂的能量消耗降低百分十五。 B: That's excellent. How have you man

发表于:2019-01-14 / 阅读(25) / 评论(0) 分类 职业技术英语口语

Hydropower, geothermal, wind, solar, biomass. 水力,地热,风力,太阳能以及生物质。 Did you know that last year, for 299 days, 你们知道去年总共有299天, we did not use any fossil fuels in order to generate all our electric

发表于:2019-01-18 / 阅读(38) / 评论(0) 分类 TED演讲国际问题篇

Oil is good and bad. Its good because it helps our energy needs. Its bad because it causes pollution. Oil is a fossil fuel. Burning it produces carbon dioxide (CO2). This is one of the biggest causes of global warming. There isnt much oil left in the

发表于:2019-01-21 / 阅读(46) / 评论(0) 分类 纯正英语一分钟

By Paul Sisco Washington 07 March 2007 watch Ethanol Alternative Fuel President Bush speaks to reporters about how cellulosic ethanol can be produced from biomass such as spruce wood chips President Bush leaves this week for a five nation Latin Amer

发表于:2019-02-03 / 阅读(81) / 评论(0) 分类 2007年VOA标准英语(三月)
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