不对称放大 {手性放大}

美丽新世界Brave New World 第18章(13)

Splendid! He kept his telescopic cameras carefully aimedglued to their moving objective; 精彩片他小心地调着望远摄影机的镜头，盯紧了那移动着的对象。 clapped on a higher power to get a close-up of the frantic and distorted

发表于:2018-12-07 / 阅读(76) / 评论(0)

美丽新世界

VOA慢速英语2013 EXPLORATIONS - The History of the Laser

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(71) / 评论(0)

2013年VOA慢速英语(二)月

中英双语新闻朝鲜警告将先发制人

BBC News with Julia Candler. A senior member of North Koreas government has warned that his country would react with a pre-emptive nuclear strike if it saw signs that the US was preparing to launch an attack. Speaking to the BBC, the Vice Foreign Min

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中英双语新闻

经济学人:全球增长放缓美国成为异类(3)

Another threat is a rising oil price. In September the price of Brent crude surpassed $80 per barrel for the first time since 2014, 另一个威胁是油价的增长。9月，布伦特原油价格自2014年以来首次超过80美元\桶， driven in

发表于:2018-12-29 / 阅读(145) / 评论(0)

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VOA慢速英语20060526b

AMERICAN MOSAIC - Springsteen Sings the Songs of SeegerBy Shelley Gollust, Daniel Kirch and Jill Moss Broadcast: Friday, May 26, 2006 (MUSIC) HOST: Welcome to AMERICAN MOSAIC, in VOA Special English.

发表于:2019-01-02 / 阅读(59) / 评论(0)

2006年慢速英语（五）月

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asceticism n．禁欲主义 aseptic adj．无菌的，洁净的 asinine adj．愚笨的 asparagus n．芦笋（可作蔬菜） asperity n．粗鲁，艰苦 aspersion n．诽谤，中伤 asphyxiate v．（

发表于:2019-01-03 / 阅读(60) / 评论(0)

GRE英语

TED演讲:在体内寻找癌细胞的小颗粒(3)

In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。

发表于:2019-01-03 / 阅读(81) / 评论(0)

TED演讲科学篇

SSS 2011-10-07

PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat

发表于:2019-01-08 / 阅读(69) / 评论(0)

Scientific American(十)月

SSS 2012-03-15

This is Scientific American 60 Second Science, I am Karen Hopkin, this will just take a minute. Every year, about 10 million tons of paper winds up in American landfills and incinerators, which is not only wasteful but adds CO2 to the atmosphere. Rec

发表于:2019-01-08 / 阅读(86) / 评论(0)

Scientific American(三)月

VOA标准英语2013--The History of the Laser

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(115) / 评论(0)

2013年VOA慢速英语(五)月

TED演讲:关于听的艺术(6)

Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为，我是说，耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现

发表于:2019-01-18 / 阅读(62) / 评论(0)

TED演讲国际问题篇

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Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the science of the future to eve

发表于:2019-01-24 / 阅读(82) / 评论(0)

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国务院宣布刺激消费新措施

At Wednesday's regular government meeting, Chinese Premier Li Keqiang called for more reforms and innovation to boost domestic consumption. As part of a raft of policies, the Chinese cabinet has promised to speed up reforms on the household registrat

发表于:2019-02-05 / 阅读(56) / 评论(0)

英语新闻

你属于哪种胸型你真的选对文胸了吗？

Finding a supportive, well-fitting bra can be a struggle for women of any age. While size plays a part, the width and length of your breasts and the direction they point is, as well as where they're placed on your chest, is also important. 找到支撑

发表于:2019-02-08 / 阅读(51) / 评论(0)

实用英语

绿箭侠第一季第319期:夺下贝克曼的电脑

Call Cayman Fidelity. 打给开曼富达银行 Tell them their favorite accountant is flying in to make a special deposit for a special client. 就说他们最喜欢的会计正要飞过来，替一位特别的客人存一笔特别的款子。 That e

发表于:2019-02-17 / 阅读(77) / 评论(0)

绿箭侠第一季

英语听力精选进阶版 6221

Final Designs for London's New Buses Unveiled 伦敦推出最新版巴士设计 What is red but green, open but closed and old but new? Answer: London's stunning new double-decker buses. The traditional red double-deckers are a symbol of London. Thei

发表于:2019-02-21 / 阅读(56) / 评论(0)

英语听力精选进阶版

经济学人323:健康指标从表面判断

Science and technology 科学技术 Health indicators 健康指标 On the face of it 从表面判断 More evidence that symmetrical features indicate good health 更多证据表明对称容貌显示身体健康 BEAUTY may be in the eye of the beholde

发表于:2019-02-24 / 阅读(129) / 评论(0)

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The Revolution in American Higher Education To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid 1860's to the mid 1880's, three primary causes interacted. The emergence of a half dozen

发表于:2019-02-25 / 阅读(72) / 评论(0)

双语有声阅读

TED演讲:海地的工程灾难(2)

This is the Ministry of Justice. 这是司法部。 Behind that door is the National Judicial Archives. 那扇门后是国家司法档案馆。 The fellow in the door, Andre Filitrault -- 门旁站着的是安德烈菲利亚特罗， who's the direct

发表于:2019-03-04 / 阅读(81) / 评论(0)

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The APU fire seems to be extinguished. Request fire trucks on standby and stairs vehicle to disembark the passengers. 521. APU火情看样子被熄灭了，申请消防车待命，还有客梯车以便让旅客下飞机。 The APU is still on fire. W

发表于:2019-03-10 / 阅读(172) / 评论(0)

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