[电] 推挽放大

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(154) / 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(164) / 评论(0)

2013年VOA慢速英语(二)月

Identity Thieves’ New Ploy: Pharming

Identity Thieves’ New Ploy: Pharming 2 How do people pharm? Pharming scams take a few different forms: Attackers could use malicious code, such as a virus, planted on a user’s PC to track keystrok

发表于:2018-12-19 / 阅读(293) / 评论(0)

彭蒙惠英语

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

发表于:2018-12-20 / 阅读(181) / 评论(0)

中英双语新闻

美国科学60秒 SSS 2015-01-22

This is Scientific American's 60s Science. I'm Karen Hopkin. This will just take a minute. Think about the tools used by biologists, perhaps test tubes and microscopes come to mind. But what about diapers? No, it's not the investigators in their work

发表于:2018-12-24 / 阅读(236) / 评论(0)

2015年Scientific American(一)月

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(191) / 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(178) / 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(177) / 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(229) / 评论(0)

2013年VOA慢速英语(五)月

VOA慢速英语2012--The Laser: Futuristic Science Found at Your Local Store

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: 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

发表于:2019-01-12 / 阅读(196) / 评论(0)

2012年VOA慢速英语(一)月

VOA标准英语2012--'Word on Street' Impacted Language in 2011

'Word on Street' Impacted Language in 2011 While 2011 is over, some of the words that came to define the past year are still very much with us, and may be for years to come. Since 2011 was an especially busy year for grassroots political action, many

发表于:2019-01-13 / 阅读(146) / 评论(0)

VOA标准英语2012年(一月)

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(159) / 评论(0)

TED演讲国际问题篇

单词超市第八十一期 pull back

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2019-01-20 / 阅读(202) / 评论(0)

英语单词荟萃

【英语语言学习】镭射器的历史

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(257) / 评论(0)

英语语言学习

英语语法：63 Hyphens

Grammar Girl here. Today's topic is hyphens. On Monday afternoon Pat was watching the cable channel CNBC and called me over to the TV because the hosts were talking about hyphens. Yup, in the middle of a segment on the economy, they started talking a

发表于:2019-01-30 / 阅读(300) / 评论(0)

英语语法 Grammar Girl

VOA常速英语2007年-Scientist in Texas Runs NASA's Lunar Laser Prog

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(212) / 评论(0)

VOA常速英语2007年（十一月）

Ganso could be out until 2013, says physio

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(263) / 评论(0)

英语新闻

科学美国人60秒 SSS 诺贝尔物理学奖颁给激光控制实验者

Nobel in Physics for Controlling Laser Light 诺贝尔物理学奖颁给激光控制实验者 The main practical application of CPA so far has been in the eye surgery. It was the first one, and I think it is the one that is used by the most people fo

发表于:2019-02-14 / 阅读(236) / 评论(0)

2018年科学美国人10月

美国习惯用语:291 pull for; pull through; pull sb.'s leg

我们上次学的习惯用语都有push也就是推这个词，而我们今天要讲的习惯用语却都有一个动作相反的词pull，也就是拉。我们先要学两个习惯用语，它们分别是：pull for. Pull for是打气、鼓劲，或

发表于:2019-02-18 / 阅读(292) / 评论(0)

美国习惯用语

双语有声阅读：美国高等教育的革命

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(205) / 评论(0)

双语有声阅读

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学英语单词

acquired behavior

ADPE (automatic data processing equipment)