发射极接地放大电路

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(121) / 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(125) / 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

发表于:2018-12-20 / 阅读(141) / 评论(0)

中英双语新闻

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(141) / 评论(0)

TED演讲科学篇

CNN 2009-11-18

In Beijings bitter cold, President Obama was all about showcasing a new warmth with China, as he toured the historic Forbidden City and its Hall of Supreme Harmony. Beautiful and what a magnificent place to visit. By the end of this week, Mr. Obama w

发表于:2019-01-07 / 阅读(126) / 评论(0)

cnn2009年(十一)月

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(136) / 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(140) / 评论(0)

Scientific American(三)月

好听的英文歌曲：I Need Some Sleep - Eels

EELS 是一支美国非主流乐队，Mark Everett 是乐队的核心和主唱。他们坚持着独立的音乐立场，不管多大的公司找他写歌或者代言推销产品，都统统不甩。但出于对一些人的艺术理想的认同，他们

发表于:2019-01-10 / 阅读(124) / 评论(0)

好听的英文歌曲

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(185) / 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(158) / 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(109) / 评论(0)

VOA标准英语2012年(一月)

美国习惯用语:355 the rubber chicken circuit

今天我们要讲几个在美国总统大选的竞选阶段常会用到的习惯用语。美国总统大选每四年举行一次。在大选年的前一年,准备竞争本党总统候选人提名的人士就已经在各州积极展开竞选活动了，

发表于:2019-01-16 / 阅读(206) / 评论(0)

美国习惯用语

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(119) / 评论(0)

TED演讲国际问题篇

【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(180) / 评论(0)

英语语言学习

The Grounded Conductor

Tom is applying for a job as a signalman for the local railroad, and is told to meet the inspector at the signal box. The inspector decides to give Tom a pop quiz, asking, What would you do if you realized that two trains were heading towards each ot

发表于:2019-01-26 / 阅读(183) / 评论(0)

趣味英语

微电子辞典-5

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(155) / 评论(0)

实用英语

Ukraine's Elena Svitilona wins ITF circuit Tunisian Open

TUNIS, March 24 (Xinhua) -- Elena Svitilona of Ukraine won the la Marsa Open after beating Bulgaria's Isabelle Shinikova 7-6, 7-6 in the final on Saturday in the north of the capital. On Friday, Svitilona easily defeated Tunisian hopeful Ons Jabeur,

发表于:2019-02-06 / 阅读(187) / 评论(0)

英语新闻

CCTV9英语新闻：Foreign cargo ship grounded for sinking Chinese fishing boat

A foreign Cargo ship has been grounded for sinking a Chinese fishing boat with 19 on board in the East China Sea. An initial investigation showed that a Maltese cargo ship, the CATALINA, is suspected of hitting the local fishing boat. Two crew member

发表于:2019-02-18 / 阅读(139) / 评论(0)

cctv9英语新闻2016年

“不择手段”怎么说

据说很多明星和模特为了保持身材，什么办法都用。不吃饭只吃水果那是好的，有的会故意喝凉水让自己拉肚子，有的则嚎啕大哭消耗卡路里，更有甚者用手扣喉咙，把吃完的都吐出来。为了

发表于:2019-02-18 / 阅读(201) / 评论(0)

实用英语

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(156) / 评论(0)

双语有声阅读

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