[等离子] 离子声激波

今天学的词是shock。Shock的意思是震荡,震惊的意思。美国首都华盛顿最近接连发生青少年被人开枪打死的事件。报道说, The death of three young people in twenty-four hours shocked the city -- 有三个年轻人

发表于:2018-12-30 / 阅读(53) / 评论(0) 分类 英语每日一词

This is Scientific Americans 60-Second Science, Im Cynthia Graber. This will just take a minute. Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 Scientific American(六)月

By Dan Robinson Capitol Hill 04 January 2006 Although most members of Congress are still away from Washington on a lengthy break, repercussions of the scandal involving former lobbyist Jack Abramoff a

发表于:2019-01-09 / 阅读(78) / 评论(0) 分类 2006年VOA标准英语(一月)

AGRICULTURE REPORT –August 20, 2002: Exploding Meat By George Grow This is the VOA Special English AGRICULTURE REPORT. American scientist Morse Solomon has developed an unusual method to make meat s

发表于:2019-01-11 / 阅读(67) / 评论(0) 分类 农业与发展

By Liu Enming San Francisco, California 04 September 2007 Pipe picks up sounds created by waves At the tip of a tiny peninsula near San Francisco, California's Golden Gate Bridge stands the Wave Organ, a work of art that allows people to listen to mu

发表于:2019-01-20 / 阅读(94) / 评论(0) 分类 2007年VOA标准英语(九月)

Seismologists spend a lot of time listening to the earth. Ocean acoustic monitors have been providing information on the earths vibrations since the 1930s. But there are other sounds those monitors pick up as well, for instance those of waves and ch

发表于:2019-01-30 / 阅读(69) / 评论(0) 分类 60秒科学