可见光和紫外激光器

VOA常速英语2008年-US Government Reviews Laser Eye Surgery

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(145) / 评论(0)

VOA常速英语2008年（四月）

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(130) / 评论(0)

2013年VOA慢速英语(二)月

美国科学60秒 SSS 2015-01-06

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(138) / 评论(0)

2015年Scientific American(一)月

Watch the US Navy’s New Laser Weapon in Action

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(142) / 评论(0)

2017年VOA慢速英语(七)月

听歌学英语：Superhero-Lauv

I met a superhero 我曾遇到一个盖世英雄 I lost her 但我失去了她 I want her back 我渴望她归来 She did things to me that no one else could 她对我的呵护关怀无人能及 I miss that 而我终归错过了 Oh Oh Oh Oh Don't wan

发表于:2019-01-03 / 阅读(131) / 评论(0)

听歌学英语

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(196) / 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(167) / 评论(0)

2012年VOA慢速英语(一)月

Juventus not to sign any top player, says Conte

MILAN, Dec. 16 (Xinhua) -- Juventus head coach Antonio Conte said on Sunday his club will not sign any top player due to economic conditions. The January transfer window opens soon and newspapers in Italy claimed Juventus is finalising a deal to sign

发表于:2019-01-17 / 阅读(146) / 评论(0)

英语新闻

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(170) / 评论(0)

VOA常速英语2007年（十一月）

Lesson 107 - MUNCH / HORS D'OEUVRES

munch hors d'oeuvres 今天我们要讲的两个常用语大概会使你流口水的。首先，让我们来给大家介绍一个字

发表于:2019-02-02 / 阅读(199) / 评论(0)

美国习惯用语

Juventus beat Inter 2-0

TURIN, March 25 (Xinhua) -- Juventus beat Inter 2-0 at home in the Derby d'Italia on Sunday to move within four points of the Serie A leaders AC Milan. Following a first half in which both sides had chances, Juve took the lead just before the hour ma

发表于:2019-02-05 / 阅读(173) / 评论(0)

英语新闻

英语杂谈：79 Juvenile Delinquency

Jennifer got off the bus from the university and began walking towards the flat she shared with two other students. On her way she had to buy some food and stopped in one of the shops in the street. It was run by an Asian family, and although the pri

发表于:2019-02-06 / 阅读(173) / 评论(0)

英语杂谈

Juventus rout Roma 4-1 to keep leading Serie A

Juventus rout Roma 4-1 to keep leading Serie A ROME, Sept. 29 (Xinhua) -- Juventus thrashed Roma 4-1 at home on Saturday to open up a three-point lead at the top of Italian Serie A. The match was practically over after only 19 minutes when the home s

发表于:2019-02-06 / 阅读(172) / 评论(0)

英语新闻

Juventus back to top with win over Catania

ROME, Feb. 18 (Xinhua) -- Juventus leapfrogged AC Milan to the top of the Serie A after they beat 10-man Catania 3-1 at home on Saturday. Pablo Barrientos put Catania ahead in the fourth minute before Andrea Pirlo equalised in the 22nd minute. Marco

发表于:2019-02-06 / 阅读(149) / 评论(0)

英语新闻

Juventus beats Inter 2-1 in Derby d'Italia

ROME, Oct. 29 (Xinhua) -- Juventus stayed atop of the Serie A table after they beat arch-rivals Inter 2-1 at San Siro in the Derby d'Italia on Saturday. All the three goals were scored before break as Mirko Vucinic netted the opener before Maicon equ

发表于:2019-02-06 / 阅读(176) / 评论(0)

英语新闻

Palermo upset Juventus to take first Serie A win

ROME, Sept. 23 (Xinhua) -- Palermo thrashed lackluster giants Juventus（尤文图斯） away to grab their first Serie A season win on Thursday. Young Argentine（阿根廷） talent Javier Pastore scored an early goal at Turin's Stadio Olimpico, an

发表于:2019-02-06 / 阅读(147) / 评论(0)

英语新闻

中英双语新闻——149 Screen harmful UV rays

As summer approaches we all enjoy outdoor activities. But with sunlight becoming more intense we should protect our skin from harmful direct exposure to the sun. 随着夏日的到来，我们都喜欢进行一些户外运动。但因为日照愈加强

发表于:2019-02-14 / 阅读(171) / 评论(0)

中英双语新闻

考研英语大纲词组-UVWY

U up to 起来,从事于,忙于;直到;该由…,轮到,胜任,适于 make use of 利用 put to use 使用,利用 use up 用完,花完 as usual 像往常一样,照例 V a variety of 种种,各种 join

发表于:2019-02-17 / 阅读(153) / 评论(0)

考研英语

考研英语重点词组 UV

发表于:2019-02-25 / 阅读(138) / 评论(0)

考研英语

托福口语如何否定句式集锦

1. There is not a moment to be lost. 分秒必争。 2. There is noholding back the wheel of history. 历史车轮不可阻挡。 3. Nota soul was anywhere visible. 到处见不到一个人。 4. I felt sorry for not coming in time. 我很抱歉没准时

发表于:2019-03-13 / 阅读(193) / 评论(0)

托福英语

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学英语单词

a one-two punch

affluxed

airfalls

allport lindzey study of values

anti lambda hyperon

ANTIMYCOBACTERIALS

Arteria comitans nervi mediani