How Can Air Traffic Controllers Lose a Plane? 马航370航班失联事件仍无进展

How Can Air Traffic Controllers Lose a Plane? 马航370航班失联事件仍无进展 From VOA Learning English, this is In the News. 这里是美国之音慢速英语新闻报道。 The search for a Malaysia Airlines passenger jet expanded this week

VOA标准英语2015--科学家们解决变色龙眼睛的奥秘

Scientists Solve Mystery of Chameleon Eyes 科学家们解决变色龙眼睛的奥秘 Chameleons can move their eyes in different directions, and most scientists thought that meant that each eye worked independently from the other. Scientists in Isra

2009-02-07&2009-02-09 脉搏快有问题？

So how is it, doc? It goes alright? Good. OK. I have my pulse checked coz Jim from Texas says his pulse is fast, really fast and he'd like to know if he should worry about it. Is a fast pulse an indication of anything specific? Well, you'd know the n

2017年CRI Trump to privatize air traffic control system

U.S. President Donald Trump (R) speaks before signing a decision memo and a letter to members of Congress outlining a plan for privatizing the nation's air traffic control system, in the East Room of the White House, in Washington DC, on June 5, 2017

超声英文术语

超声成像 ultrasonic imaging 实时成像 real-time imaging 灰阶显示 gray scale display 彩阶显示 color scale display 经颅多普勒 transcranial doppler 彩色多普勒血流显像 color doppler flow imaging 彩色血流造影 color flow

美国有线新闻 CNN 美在韩部署萨德遭中方强烈反对 详解萨德反导系统

The Terminal High Altitude Area Defense or THAAD is a missile defense system. It uses missile to stop missiles. And the U.S. has deployed the first components of a THAAD system to South Korea. Why? Because North Korea, which is a rival of both the So

VOA慢速英语2013 生存避难所,龙卷风和老铁壁

AS IT IS 2013-08-19 Survival Shelters, Tornadoes and Old Ironsides 生存避难所,龙卷风和老铁壁 Hello, and welcome to the Monday edition of As It Is, our daily show for people learning everyday American English. 大家好，欢迎大家收听周

VOA慢速英语2011--Mobile Devices' Location Tracking Raises

Technology Report - Mobile Devices' Location Tracking Raises Privacy Concerns This is the VOA Special English Technology Report. Lawmakers in the United States have expanded an investigation into the use of location-tracking systems on mobile devices

VOA慢速英语2013 不断上升的气温可能会意味着更多的森林大火

AS IT IS 2013-09-11 Rising Temperatures Could Mean More Wildfires 不断上升的气温可能会意味着更多的森林大火 From VOA Learning English, welcome to As It Is! Im Mario Ritter. On our show today, we hear from two weather experts. We he

VOA慢速英语2014 How Can Air Traffic Controllers Lose a Plane? 一架飞机是怎么消失无踪的

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2006年VOA标准英语-US Missile Intercepts Ballistic Target in Test

By Al Pessin Washington 01 September 2006 The U.S. Defense Department says it conducted a successful test of its land-based ballistic missile defense system on Friday. Officials say a missile launched from California intercepted a target missile fro

VOA标准英语2010年-Airstrikes Target al-Qaida in Yemen

Yemen says its fighter jets struck the home of a prominent al-Qaida in the Arabian Peninsula terrorist, the day after new international sanctions were announced against the group. Yemeni government fighter jets launched a series of raids against the

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科学家揭开变色龙眼球独立运动的奥秘 Many fish and birds have eyes on opposite sides of the head, and they seemingly have at any given moment two different pictures of the world around them. But chameleonseyes are slightly bulging so t

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US Company Developing Space-Based Plane Tracking 美国公司开发太空基地飞机追踪技术 LEESBURG, VA One of the reasons Malaysia Airlines flight MH370 hasn't been found is because the plane couldn't be tracked continuously over the ocean. I

英闻天下——410 Alternative Energy to Improve China's Air Quality

China's energy production relies heavily on coal-fired power stations. As the world's highest emitter of greenhouse gasses, China consumed more than 400 million tones of coal last year. As many parts of China have been shrouded in a gray haze over th

Tracking Outer Space Debris

Every year satellites are damaged or destroyed by objects orbiting the Earth's atmosphere. An Australian company is now using the latest laser technology to track these objects in order to reduce cosmic damage. Li Dong has the details. Even in space,

生活大爆炸第一季第六集_1：The Middle Earth Paradigm

生活大爆炸第一季第六集_1：The Middle Earth Paradigm -Rajesh: Okay, if no one else will say I will. We really suck at paintball. 好吧，如果没人说那就我来说。我们在彩弹比赛中的表现实在太差了！ -Howard: That wa

VOA标准英语2008年-Blast Targets Pakistani Air Force Truck in Nort

Police officials in Pakistan's volatile northwest region say an improvised explosive device detonated under a vehicle carrying troops and civilian employees of a Pakistani air force base, killing at least 13 people. VOA's Barry Newhouse reports that

辛沛沛NO-BOOK 傻瓜机口语极短句 Lesson 334 Your pulse is regular.

Lesson 334 Your pulse is regular. 1.Your pulse is regular.您的脉搏正常。 2.I have a regular diet.我的饮食是有规律。 3.I'm not a regular lawyer.我不是正式的律师。 4.He has no regular work.他没有正式的工作。 5.It's my

VOA标准英语2013--Doppler on Wheels Rolls Into Tornados

Doppler on Wheels Rolls Into Tornados Doppler radar reads the weather based on reflections from items moving through the air. Joshua Wurman was the first to put the technology on wheels and drive it directly into the path of a tornado. I invented Dop