太阳科普 第6期

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条，都是微量复杂元素造成的 metals like iron and magnesium. 好比说

FBI - 揭密联邦调查局 - 4

Unlike the fertilizer bomb used in Oklahoma City, device analysis reveals that the New Jersey bomb is made from common household items. The problem is that there are so many things that can be used to

Uses Hydrogen1 as Fuel2

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

我们该选择死亡吗？

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

美国有线新闻 CNN 2015-06-04

He's test firing, recalibrating and threatening to attack. As Kim Jong-un races to perfect its ballistic missile capability, there are serious questions whether the US can defend against that threat. The anti-missile system that would shoot down Nort

2014年ESL之餐饮娱乐 10 Building with Wood and Metal

Building with Wood and Metal Hugo: Wow, when you said that you did some woodworking on the weekends, I thought you meant refinishing furniture. But this! This is a real workshop and youre actually building furniture. Shawna: Yeah, this is what Im wor

创业成功人士访谈录 第83期:我们不是也永远不会成头一个生产机构(3)

This combination of skills is key to us being able to effectively develop prototypes, always with the production environment in mind. 这种结合技能对我们始终恪守生产环境、有效开发原型而言至关重要。 In our facility you wi

机械类词汇大全-34

1387 、 电木 Bakelite 1388 、 电玉；醛树脂 ureaformaldehyde(UF) 1389 、 电池 cell 1390 、 电池组 battery 1391 、 电位；电势 electricpotential 1392 、 电位计 potentiometer 13

TED演讲:疯狂的科学家用苹果做出了耳朵(3)

So I actually brought this up with my wife. 我也跟我的老婆提起过这件事， She's a musical instrument maker, and she does a lot of wood carving for a living. 她是一位乐器制造家，也把制作木雕当成一种职业。 So I asked

乔布斯传 第16期:上学(4)

It would have been fun if he had gotten to teach me how to use a mill and lathe. But unfortunately I never went, because I was more interested in electronics. 要是他能教我用铣和车床的话，一定会很有意思的，但遗憾的是，我从

乔布斯传 第60期:奇迹从车库开始(1)

Garage Band 车库工厂 The Jobs house in Los Altos became the assembly point for the fifty Apple I boards 乔布斯一家位于洛斯阿尔托斯的房子，成为了这50块AppleI主板的组装工厂。 that had to be delivered to the Byte Shop w

绿野仙踪 第96期:解放温基人(2)

The Winkies lifted him tenderly in their arms, and carried him back to the Yellow Castle again, 那些温基人，轻手轻脚地，把他扶起在他们的手臂上，抬着他跋涉着回到黄色的城堡里， Dorothy shedding a few tears by the

纽约车展上电动汽车来势汹汹

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

2007年VOA标准英语-iPhone Modified for Any Mobile Service

By Todd Grosshans Washington 06 September 2007 The Apple iPhone The very popular iPhone must be used withthe not so popular cellular network ATT. People using other networks must break their contracts to switch to ATT. That can cost up to $250. But a

电信类英语词汇表大全-16

中文 英文 缩写 拨码开关 DIP switch 波长 wavelength 波长计/频率计 cymometer 波导 waveguide 波导滤波 waveguide filter 波导效应 waveguide effect 波动势 cymomotive force 波段

托福考试：TOEFL模拟试题

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

雅思单词前缀整理

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

我们该选择死亡吗

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

各种花样的风筝怎么说？

9月16日是墨西哥馆日，墨西哥馆五颜六色的风筝森林吸引了不少人的眼球，你知道小小的风筝里有什么大学问吗？其实风筝也有很多种分类哦，一起来看看吧。 说到kite这个单词，这也许是我们

朝鲜宣布成功进行首次氢弹试验

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实，朝鲜成功的进行了