机械类词汇大全-19

757 、 玻璃纤维席 glassfibremats 758 、 界面；分界面；接口 interface 759 、 相差 phasedifference 760 、 相对密度 relativedensity 761 、 砂布 emerycloth 762 、 砂磨 sandin

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

家具机械词汇

A---- accessory equipment 附属设备 adhesion test instrument for the wood coating 木材涂层附着力测定仪 adz(e) 手斧，刮刀 air brake 空气制动器，气闸 air compressor 空气压缩机 air conditioning unit 风向调节器 air nailer 风动钉钉机 air operated automatic

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

VOA双语新闻：12、美国火箭爆炸，私营航天产业的挫折

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环球英语 — 72：Stopping Racist Chants

Voice 1 Hello. Thank you for joining us for todays Spotlight program. Im Liz Waid. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Vo

标准美国英语口语 19 Shopping

Unit 19 Shopping 361.There is a goras sell at the weeks this coming sunday? 362.You can use a get good staff at right sell for real little money. 363.Wendy likes to visit flea markets. 364.My wife likes to go to supermarkets. 365.Shop to your drop! 3

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

美国私企飞船与空间站对接

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好听的英文歌曲：End Of May — Keren Ann

Keren Ann 是法国乐坛最受瞩目的民谣才女。有人说Keren Ann的东西适合作为全世界任何一家咖啡馆的背景音乐，显然这很合理，但如此华美却又极简矜持的作品更适合于私人聆听。Keren Ann美妙的轻

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

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

VOA标准英语--Asian Government Subsidies Ease Inflation Pa

Consumer prices are rapidly rising in Asia, and many people are trying to stretch their budgets. As governments are giving out cash and increasing subsidies on fuel and staple goods to soften the blow on consumers. In Thailand, food vendors say infla

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

VOA标准英语2013--Scientists Develop New Ways to Track Greenhouse Gases

Scientists Develop New Ways to Track Greenhouse Gases With more than 18 million people living, working and driving in Los Angeles, the city often is covered in a hazy layer of smog. Stan Sander, senior research scientist at the U.S. space agency's Je

美国国家公共电台 NPR 'He's Not A Leading Man': A Casting Director On Rembrandt's Self-Portraits

'He's Not A Leading Man': A Casting Director On Rembrandt's Self-Portraits DAVID GREENE, HOST: Los Angeles is pretty star struck these weeks before the Oscars, as usual. But over in nearby Pasadena, a crowd of art lovers is visiting this 400-plus-yea

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

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

影视歌曲：Keren Ann-end of may

close your eyes and roll a tise under the pool there's a compormise if after all only left twice which lifes the wrong road to peridise don't say a word here comes the prake of the day and white clouds of sanderest by the wind of the end of May close