傅里叶合成器

AMERICAN MOSAIC - Kids Helping Kids Survive the Effects of K

AMERICAN MOSAIC - Kids Helping Kids Survive the Effects of Katrina By Nancy Steinbach Broadcast: Friday, September 09, 2005 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English. I'm Doug J

发表于:2018-12-07 / 阅读(105) / 评论(0)

American Mosaic

经济学人:美式乌托邦短命的狂热(下)

Robert Owen, a British mill-owner and reformer, treated private property, along with organised religion and marriage, as a social scourge. In 1825 he bought land for a farm-and-factory commune in Indiana. It attracted farmers, artisans and intellectu

发表于:2018-12-31 / 阅读(58) / 评论(0)

经济学人文艺系列

让一切皆有可能国产可穿戴机器人问世

A China-made wearable robot that can assist disabled people with walking is expected to enter the market in one to two years, according to its developer. 我国已自主研发出一款可以帮助残疾人行走的可穿戴机器人，其研发方称，

发表于:2019-01-07 / 阅读(93) / 评论(0)

英语新闻

SSS 2008-04-09

This is Scientific American's 60-Second Science,I'm Christopher Intagliata,got a minute？ Benny Goodman earned his title,the king of swing as a virtuoso of the clarinet,but now a computer in upstate New York has learned to rip him off.Researchers at

发表于:2019-01-08 / 阅读(110) / 评论(0)

Scientific American(四)月

SSS 2011-07-08

Cameras were once big and bulky. Today,really good cameras fit in your pocket. And now, researchers at Cornell havedeveloped a camera thats just a half-millimeter on each side and a hundredthof a millimeter thick. The lens-less device is called a Pla

发表于:2019-01-08 / 阅读(95) / 评论(0)

Scientific American(七)月

VOA标准英语2014--Mad World: 80s New Wave Rock Acts in Their Own Words

Mad World: 80s New Wave Rock Acts in Their Own Words Music fans have already seen songs of the 1960s get their due and the sounds of the 1970s have been endlessly analyzed as well. But what about the 1980s? The authors of a new book are celebrating t

发表于:2019-01-14 / 阅读(85) / 评论(0)

VOA标准英语2014年(六月)

【英语时差8,16】冰激凌融化：热传导 -上

Live a single day on planet Earth, or anywhere else in the universe for that matter, and you will experience the natural phenomenon of heat conduction, which is the term used to describe the natural flow of heat from warmer objects to cooler ones. Yo

发表于:2019-03-06 / 阅读(136) / 评论(0)

英语时差8，16

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amplified spontaneous emission

application for prospecting