单词:orbital artery
单词:orbital artery 相关文章
Elaine chao - the most powerful chinese-american woman in the us My parents are wonderfully inspiring people and when I think about how we came to America, I think about their courage and their determ
Alice: Hello, I'm AliceStephen: And I'm Stephen. Alice: And this is 6 Minute English! This week were talking about sleepwalking. Have you ever walked in your sleep, Stephen? Stephen: I dont think so, but Ive been known to tell stories in my sleep. Al
200. May I speak to Mr Willam Hartery, please? 201. Would you like to leave a message? 202. May I ask you to spell your name, please? 203. May I have your number, please? 204. You may call my home if you like? 205. This is Willam Hartery calling from
200. May I speak to Mr Willam Hartery, please? 201. Would you like to leave a message? 202. May I ask you to spell your name, please? 203. May I have your number, please? 204. You may call my home if you like? 205. This is Willam Hartery calling from
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
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
From NPR News in Washington, I'm Barbara Klein. The Mississippi River at Natchez is now closed to shipping traffic. The Coast Guard made the move to avoid putting more stress on the swollen river's levees, but it also closes off the major artery for
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
But if Bietak and Pusch had indeed found Piramess at Qantir, what was it that Montet had discovered at Tanis. Once you've recognized Piramess is indeed at Qantir, you start wondering what on earth is Tanis thing. There are buildings there which real
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 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
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
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
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
They will share the information on how to improve. 他们会交流如何改善治疗效果的经验。 So it is, by measuring and creating transparency, 正是通过医疗效果量化和透明化, you get a cycle of continuous improvement, 我们进入
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
69 促使切尼副总统心脏跳动的机械装置 DATE=7-17-01 TITLE=SCIENCE IN THE NEWS #2133 - Heart Devices BYLINE=Jerilyn Watson VOICE ONE: This is Sarah Long. VOICE TWO: And this is Steve Ember
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