单词：modulated-beam photoelectric sys-tem
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用Mp3背六级单词
TEXT Seen through the eyes of a young friend Einstein was a simple, modest and ordinary man. The professor and the Yo-yo My father was a close friend of Albert Einstein. As a shy young visitor to Einstein's home, I was made to feel at ease when Einst
大学英语精读第二册
beam, [bi:m] n 大梁（建筑中用作支撑的木材、金属或石头）；光柱；臀围；平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,
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Science and technology. 科技。 Photoelectric cells. 光电池。 To dye for. 利用染料进行能量转化。 A new type of cell may bring solar energy indoors. 一种新型电池也许能带来室内太阳能。 THE phrase indoor solar power sou
经济学人科技系列
补充： Backbone - A series of high-speed network connections through which other networks connect. Bandwidth - According to Webster's: a range within a band of wavelengths, frequencies, or energies
电信英语
Cache - Generally, a place to temporarily store something. Regarding computers and telecommunications, it is a place where data is temporarily stored during transmission. Call - This is a connection b
电信英语
四六级阅读占考试的比重很大，很多考友也为阅读烦恼不已，该怎么办呢？两个字：多看！ 所以，从今天开始，每天会节选一些文章和大家一起阅读。 接
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Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma
英美文化
When Augustus White was growing up in the American south in the 1940s, racial segregation was an accepted part of life. African Americans got second best - in education, employment, and health care. But White overcame those barriers, becoming an orth
VOA标准英语2011年(二月)
Al Gore accepted the Nobel Peace Prize in 2007 along with Rajendra Pachauri accepting on behalf of the UN's intergovernmental panel on climate change for their work to sound the alarm over global warming. The Six Nobel Prizes are traditionally awarde
自然百科2009年
Science and Technolgy. 科技。 Photoelectric cells. 光电池。 To dye for. 染料光电池。 A new type of cell may bring solar energy indoors. 一种新型电池有望将太阳能引进室内。 THE phrase indoor solar power sounds like an oxym
经济学人科技系列
But the landmark eventthe dawn of a new agecame in 1905, when there appeared in the German physics journal Annalen der Physik a series of papers by a young Swiss bureaucrat who had no university affiliation, no access to a laboratory, and the regular
万物简史
Cocktail fans in London will want to take deep breaths when they enter a pop-up bar that opens on Thursday, July 30, on the site of an ancient monastery in Borough. 位于博罗市场古老修道院内的一家快闪酒吧于7月30日开放，伦敦爱
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If you are looking for a loan, serving your bank manager breakfast might just do the trick. 如果你准备申请贷款，不妨为银行经理准备早餐，问题即可迎刃而解。 A compound found in eggs makes people much more generous, new re
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Science and technology 科学技术 Photoelectric cells 光电池 To dye for 染料光电池 A new type of cell may bring solar energy indoors 一种新型电池有望将太阳能引进室内 THE phrase indoor solar power sounds like an oxymoron. 室内
经济学人科技系列
In the morning, at this time of year, on the contrary, we are overpowered by the vocal and multitudinous chorus of the feathered tribe. 与之形成鲜明对比的是，每年这个季节的清晨，我们都会被长着羽毛的族类那动听和多声
美国语文第六册
Science and technology. 科技。 Neutrino communications 中微子通信 ET, phone home 外星人，致电家中 The world's first neutrino-messaging service 世界上首次中微子通信服务 PARTICLE physics is all very well for addressing trivi
经济学人综合
Marie Curie was born in 1867. She is one of the greatest scientists ever to have lived. She was a pioneer in the field of radioactivity and discovered the chemical elements radium and polonium. Curie is the only person ever to win two Nobel Prizes in
世界名人简介