波带板激光准直

用激光技术为迷航的飞行员示警

Laser Technology to be Used to Warn Straying Pilots 用激光技术为迷航的飞行员示警 In September 2004, a Delta pilot claimed a laser beam injured him as he was about to land his jet in Salt

发表于:2018-12-08 / 阅读(173) / 评论(0)

VOA2005（上）--环境科学探索

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(171) / 评论(0)

VOA常速英语2008年（四月）

新东方优美背诵短文50篇 Unit36:Plate Tectonics and Sea-floor Spreading

The theory of plate tectonics describes the motions of the lithosphere, the comparatively rigid outer layer of the Earth that includes all the crust and part of the underlying mantle. The lithosphere(n.[地]岩石圈)is divided into a few dozen plates o

发表于:2018-12-08 / 阅读(557) / 评论(0)

新概念优美背诵短文50篇

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

VOA常速英语2014--New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力

New Laser Device Helps Parkinson's Patients Walk 新激光设备帮助帕金森患者重获行走能力 Parkinsons disease slowly destroys the brains ability to control the muscles, depriving the patients of their mobility. Researchers at the Mayo Cl

发表于:2018-12-16 / 阅读(154) / 评论(0)

VOA标准英语2014年(二月)

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(179) / 评论(0)

2017年VOA慢速英语(七)月

2005年NPR美国国家公共电台九月-Laser Work Earns Trio Nobel Prize for Phy

This is All Things Considered. I'm Michelle Norris. Phone calls from Sweden woke up two American scientists this morning, John Hall and Roy Glauber. They will share the Nobel Prize for Physics with a German Researcher Theodor Haensch. All three worke

发表于:2019-01-08 / 阅读(249) / 评论(0)

2005年NPR美国国家公共电台

美国习惯用语:482 step up to the plate...

今天还是要继续讲两个在大选期间新闻界常用来报道选战形势的习惯用语。你知道哪一种运动是美国人日常用语最丰富的源泉呢？是美国最风行的球类运动：棒球。今天要说的两个习惯用语都

发表于:2019-01-09 / 阅读(249) / 评论(0)

美国习惯用语

美国习惯用语:295 step up to the plate

在美国每年棒球季节的第一场比赛相当于春天来临的信息。说真的，这一百多年来最得美国大众青睐的运动就是棒球，而棒球运动也成了习惯用语的丰富来源。我们今天就专讲一些出自棒球运

发表于:2019-01-09 / 阅读(259) / 评论(0)

美国习惯用语

UNIT 4 Look into Science! Lesson 28: Fill My Plate

[ti:UNIT 4 Look into Science! Lesson 28: Fill My Plate] [0:00.567]UNIT 4 第四单元 [0:02.629]Look into Science! 走进科学！ [0:04.999]Lesson 28: 第28课： [0:07.524]Fill My Plate 把我的盘子装满 [0:15.770]It's time for lunch! 该吃午饭

发表于:2019-01-09 / 阅读(324) / 评论(0)

河北教育初中英语（初中起点）八年级下册

每日一词【923】in the zone：进入最佳状态

今天我们要学的词是in the zone。 In the zone, 意思是进入最佳状态。 He was in the zone throughout the playoffs, 整个季后赛他一直保持最佳状态。 Nobody can touch him when he is in the zone, 他一旦进入最佳状态，谁

发表于:2019-01-11 / 阅读(218) / 评论(0)

英语每日一词

学个词Learn a Word 第923期 In the zone

发表于:2019-01-11 / 阅读(199) / 评论(0)

英语单词荟萃

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(195) / 评论(0)

2012年VOA慢速英语(一)月

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(209) / 评论(0)

VOA常速英语2007年（十一月）

体育词汇—射箭术语之一（中英对照）

发表于:2019-02-01 / 阅读(131) / 评论(0)

奥运英语

囧研究：想让食物更美味？转转你的盘子吧！

Rotating your plate as it is placed on the table may improve the taste of your food, psychologists claim. People have a subconscious preference for food that points away from them, according to Oxford University experts, to the extent that it can aff

发表于:2019-02-06 / 阅读(134) / 评论(0)

阅读空间

Zone out“走神”英语怎么说

Larry和李华明天要考试，今天一起复习，但李华一直没法专心。她今天会学到两个常用语：zone out和now you're cooking with gas。 LL: So Reaganomics were the economic policies of US. President Ronald Reagan - Li Hua? Ar

发表于:2019-02-16 / 阅读(214) / 评论(0)

实用英语

经济学人237:寻找外星生物闪烁吧小行星

The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧，小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能帮助寻找其他太阳系的生命

发表于:2019-02-16 / 阅读(211) / 评论(0)

经济学人科技系列

经济学人452:光学方法帮助寻找其他太阳系的生命

Science and technology. 科技。 The search for alien life 寻找外星生物 Twinkle, twinkle, little planet 闪烁吧，小行星 An undervalued optical trick may help to find life in other solar systems 一个不被人重视的光学方法可能能

发表于:2019-02-18 / 阅读(145) / 评论(0)

经济学人综合

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学英语单词

4'-ethyl-2-methyl-3-piperidino-propiophenone

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