单词：analysis of combustible gases
单词：analysis of combustible gases 相关文章
On a restricted site in northern Wisconsin, the hissing you hear is helping scientists see the future. Inside towering rings of pipes, aspen, birch, and sugar maples feed on measured diets of greenhouse gases. Our studies were looking at what forest
国家地理2007年
Community colleges still don't get the dollars of their four-year counterparts(1), but they're standing very much in the spotlight(2) these days. President Barack Obama made them the focus last week when he unveiled(3) his proposed budget. Why all th
英语博客 A cup of English
Rich cities around the world are largely responsible for greenhouse gas emissions, says a new study. The study measures emissions based on the use of goods and services, such as food, clothing and electronics, by people living inside cities. It inclu
2018年VOA慢速英语(三)月
Scientists Develop New Ways to Track Greenhouse Gases With more than 18 million people living, working and driving in Los Angeles, the city often is covered in a hazy layer of smog. Stan Sander, senior research scientist at the U.S. space agency's Je
VOA标准英语2013年(七月)
STEVE INSKEEP, HOST: Audiences had an unusual opportunity over the weekend to see classic movies the way they were originally projected. The TCM Classic Film Festival in Hollywood played movies on old-style nitrate film. It's very rare and beautiful
2017年NPR美国国家公共电台4月
By Phil Mercer Sydney 02 April 2008 Australia's first large underground carbon storage facility has opened in the southern state of Victoria. The geo-sequestration plant will capture carbon dioxide from a power station and store it two kilometers ben
VOA常速英语2008年（四月）