单词：Dirac covariants
单词：Dirac covariants 相关文章
You cant judge a book by its cover. But you can judge a dog by its coat. You can even read right through to its genes. Because a study in the August 27th online issue of Science shows that just three key genes govern the length and texture of dog fur
Scientific American(八)月
The Bird Flu Recently ， the news has been filled with reports of the “bird flu.” Asia is on a region-wide health alert, with governments slaughtering millions of chickens to contain 1 outbreaks
英语沙龙2004全年合辑上
Science and Technology Fundamental physics Antimatter of fact 科技 基础物理 反物质研究突飞猛进 Researchers at CERN have held on to anti-atoms for a full quarter of an hour 欧洲核子研究中心的科研人员让反原子颗粒存在时
经济学人科技系列
Scientists say they have made a leap in knowing why some people retain their youthful looks while others age badly. 科学家称他们已经在探究为什么有的人青春长驻而另一些人逐年老去这一问题上取得突破性进展。 They
阅读空间
克里姆林宫决定斯诺登的未来 MOSCOW, June 30 (Xinhua) -- As Edward Snowden has been perching at an international airport of Moscow for a week, Kremlin said Sunday the former CIA contractor's future was not yet on its agenda. The President
英语新闻
Business 商业报道 Civilian jet engines 民用航空发动机 Gearing up for a fight 奋力一战 Pratt amp; Whitney hopes a high-tech engine will restore its former dominance. 普拉特惠特尼公司期待其新款的高科技航空发动机能重
经济学人商业系列