轨角动量矢(量)

VOA慢速英语2014 火箭爆炸后美国国家航空航天局面临的问题

Questions for NASA after Rocket Explosion 火箭爆炸后美国国家航空航天局面临的问题 Unmanned Antares rocket is seen exploding seconds after lift off from a commercial launch pad in this still image from NASA video at Wallops Island, V

发表于:2018-12-08 / 阅读(201) / 评论(0)

2014年VOA慢速英语(十)月

专业术语—基因专业词汇T/V/W/Y

发表于:2018-12-08 / 阅读(197) / 评论(0)

医务英语

VOA标准英语2014--维珍宇宙飞船失事引发诸多问题

Virgin Spaceship Crash Raises Questions 维珍宇宙飞船失事引发诸多问题 WASHINGTON Plans to fly tourists to the edge of space could be delayed after Friday's crash of Virgin Galactic's SpaceShipTwo during a manned test flight. It is the se

发表于:2018-12-16 / 阅读(186) / 评论(0)

VOA标准英语2014年(十一月)

VOA双语新闻：12、美国火箭爆炸，私营航天产业的挫折

美国火箭爆炸，私营航天产业的挫折 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosion of a private U.S. cargo space craft shortly after it's

发表于:2018-12-19 / 阅读(219) / 评论(0)

VOA双语新闻 2014年10月

《名人传记》之乔布斯遗失的访谈62:拙工抄巧匠盗

To me, we actually went an ad line earlier with Apple, 苹果以前有一条广告： that the personal computer was the bicycle of mind, 计算机是思想的自行车 and I believe that with every bone in my body, that of all the inventions of huma

发表于:2018-12-27 / 阅读(217) / 评论(0)

名人传记

TED演讲:书呆子教你如何在线学习(9)

And lastly, here's Destin, from Smarter Every Day, 最后是《每天聪明一点点》的德斯丁， talking about the conservation of angular momentum, and, since it's YouTube, cats: 为我们讲述动量守恒，由于是在YouTube上，所以他用

发表于:2018-12-30 / 阅读(274) / 评论(0)

TED演讲科技篇

Earth and Sky:Galactic Rotation 银河系自转

Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel

发表于:2019-01-02 / 阅读(378) / 评论(0)

(科普英语)Earth and Sky

机械类词汇大全-10

379 、石棉 asbestos;asbestus 380 、石膏 PlasterofParis 381 、示波器 oscilloscope 382 、立体图 pictorialdrawing 383 、交流电流 alternatingcurrent(a.c.) 384 、交流电压 a.c.

发表于:2019-01-03 / 阅读(218) / 评论(0)

英文名句短语

计算机英语高级词汇·CPU-3

SEC（Single Edge Connector，单边连接器） Shallow-Trench Isolation（浅槽隔离） SIMD（Single Instruction Multiple Data，单指令多数据流） SiO2F（Fluorided Silicon Oxide，二氧氟化

发表于:2019-01-09 / 阅读(233) / 评论(0)

实用英语

美国私企飞船与空间站对接

美国私企飞船与空间站对接 WASHINGTON, Jan. 12 (Xinhua) -- A commercial spacecraft, operated by U.S. space company Orbital Sciences Corp., docked with the International Space Station (ISS) on Sunday morning on its first official cargo resup

发表于:2019-01-09 / 阅读(243) / 评论(0)

英语新闻

VOA慢速英语2011--Space Junk Threatens Earth’s Orbital E

SCIENCE IN THE NEWS - Space Junk Threatens Earths Orbital Environment JIM TEDDER: This is SCIENCE IN THE NEWS, in VOA Special English. Im Jim Tedder. KATHERINE COLE: And Im Katherine Cole. Today, we tell about an ever increasing number of objects in

发表于:2019-01-12 / 阅读(258) / 评论(0)

2011年VOA慢速英语(九)月

VOA标准英语2012--Global Warming Could Delay Next Ice Age

Global Warming Could Delay Next Ice Age The next ice age could be delayed by tens of thousands of years due to excessive amounts of heat-trapping carbon dioxide in the atmosphere, which disrupts Earths natural cycle of warming and cooling, according

发表于:2019-01-13 / 阅读(226) / 评论(0)

VOA标准英语2012年(一月)

VOA标准英语2014--火箭发射失败美国私人航天受挫

With Failed Launch, US Private Space Industry Suffers Setback 火箭发射失败美国私人航天受挫 Wednesday's successful launch of a Russian space vehicle taking supplies to the International Space Station was in sharp contrast to the explosi

发表于:2019-01-14 / 阅读(207) / 评论(0)

VOA标准英语2014年(十月)

VOA常速英语2008年-Obama Builds Momentum in US Presidential Race

By Jim Malone Washington 13 February 2008 Senator Barack Obama got a major boost Tuesday with victories in the Democratic presidential primaries in Maryland, Virginia and the District of Columbia. Obama remains in a tight race with Senator Hillary Cl

发表于:2019-01-19 / 阅读(199) / 评论(0)

VOA常速英语2008年（二月）

英语听力：探索发现 2014-05-30 BBC 地平线：陨石的真相-9

Itsremarkable how we are able to build up this picture of whats going on millionsof miles away in the solar system. Its one of the joys of science really, justalmost like a detective picking up on those tiny clues to tell a bigger story. Sothat the b

发表于:2019-01-23 / 阅读(214) / 评论(0)

探索与发现2014年

双语：太空垃圾数量已达“临界点”

The amount of debris orbiting the Earth has reached a tipping point for collisions, which would in turn generate more of the debris that threatens astronauts and satellites, according to a US study released on Thursday。 NASA needs a new strategic p

发表于:2019-01-30 / 阅读(226) / 评论(0)

实用英语

2006年VOA标准英语-US Shuttle Astronauts Test Orbital Repair Metho

By David McAlary Washington 12 July 2006 Astronaut Mike Fossum (on arm)installs the International Space Station's railcar-like mobile transporter U.S. space shuttle astronauts are on their third spacewalk since Saturday, this time to practice method

发表于:2019-02-03 / 阅读(317) / 评论(0)

2006年VOA标准英语（七月）

每日一词【371】momentum：势头

今天我们要学的词是momentum。 Momentum, 是势头的意思。 To gather momentum, 势头大增，to lose momentum, 势头减弱。美国前阿肯色州州长赫卡比在爱奥华州的基层党团会议选举中排名第一。No other candid

发表于:2019-02-04 / 阅读(177) / 评论(0)

英语每日一词

潘基文2014年世界卫生日致辞

Secretary-Generals Message on World Health Day 秘书长世界卫生日致辞 7 April 2014 2014年4月7日 Every year more than one million people die from diseases carried by mosquitoes, flies, ticks and other insects, such as triatomine bugs. These

发表于:2019-02-09 / 阅读(254) / 评论(0)

英语笔译

雅思分类词汇：环境资源相关(二十四)

遥感Remotesensing 多谱线扫描器Multispectralscanner 分辨率Resolution 像素Pixel 谱带Spectralbands 红外线Infrared 紫外线Ultraviolet 雷达Radar 轨迹Path 景物确认Sceneidentificat

发表于:2019-02-18 / 阅读(279) / 评论(0)

英文语法词汇

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