单词：rotational angular velocity of the earth
单词：rotational angular velocity of the earth 相关文章
世界末日距离我们还有多远？ 近期，法国的研究人们员对地球未来的环境状况有着不甚理想的预计和预测。 French researchers are predicting doom for Planet Earth. They believe neighboring planets could stray out of orbit and collide with the Earth billions of
国外媒体新闻
French researchers are predicting doom for Planet Earth. They believe neighboring planets could stray out of orbit and collide with the Earth billions of years from now. The BBC's David Shukman explains their theory. A view of Earth from orbit and a
万花筒2009年
Idiom: On all fours 爬行，人说话的方式非常卑微 Hit the book: Backpack Astronaut Armrest Overstuffed Fingertip Rotational
趣味青春英语
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
TED演讲科技篇
City Code - Some foreign countries require you to dial a city code before the phone number you are trying to reach. Clamp - A circuit that removes the energy dispersal signal component from the video
电信英语
BEIJING, Aug. 10 (Xinhua) -- China is preparing for the launch of an experimental recoverable moon orbiter, said the State Administration of Science, Technology and Industry for National Defence on Sunday. The orbiter arrived in Xichang via air in so
英语新闻
This is the VOA Special English Agriculture Report. To call something marginal means it is not very good. Farmers have their own way to define marginal land: It is the last to be planted under good conditions, and the first to be avoided under poor c
VOA慢速英语2007年（三）月
AGRICULTURE REPORT - Farming Marginal Lands By Mario Ritter / Broadcast: Mon, 5 Nov 2007 16:00:00 UTC This is the VOA Special English Agriculture Report. An Australian farmer stands on land damaged by lack of rain last year To call land marginal mea
VOA慢速英语2007年（十一）月
This is the VOA Special English Agriculture Report. Cattle graze in the western state of Oregon Grasslands need time to rest when cattle and other animals feed on them. Moving animals from one area of pasture to another can provide the time needed f
VOA慢速英语2008年（一）月
Imagine the disc of our galaxy, if you just took a disc of stars and put it there, gravity would tend to make this disc collapse/ into itself and it would immediately just fall together. That is not what we see with the galaxy. Whats actually going o
自然百科2011年
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
探索与发现2014年
This is the VOA Special English Agriculture Report. Grasslands need time to rest when cattle and other animals feed on them. Moving animals from one area of pasture to another can provide the time needed for new growth. This is called rotational graz
2010年慢速英语(一)月
China's unmanned lunar probe Chang'e-5, set to be launched around December 2017, will bring lunar soil samples back to Earth, says Wu Yanhua, deputy chief of the China National Space Administration. 国家航天局副局长吴艳华近日表示，我国
英语新闻
China plans to launch the Chang'e-5 lunar probe at the end of November this year, from the Wenchang Space Launch Center in Hainan, aboard the heavy-lift carrier rocket Long March-5. 我国计划于今年11月底在海南文昌航天发射场用重型运
英语新闻
BRUSSELS, Feb. 10 (Xinhua) -- NATO defense Ministers on Wednesday agreed to enhance military presence in eastern Europe at a ministerial meeting, NATO Secretary General Jens Stoltenberg said at a press conference following the first day's meeting. St
英语新闻
Hubble realized that this could be expressed with a simple equation, Ho = v/d (where Ho is the constant, v is the recessional velocity of a flying galaxy, andd its distance away from us). Ho has been known ever since as the Hubble constant and the wh
万物简史
奥巴马:美国不试图遏制中国 MANILA, April 28 (Xinhua) -- U.S. President Barack Obama said here on Monday that Washington was not trying to contain China when it signed a new military pact with the Philippines. The United States and the Phil
英语新闻
WASHINGTON, June 7 (Xinhua) -- The United States is not shifting big number of troops into the Asia Pacific region, but will try and upgrade its engagement with limited means and foster allies' participation, said Joint Chiefs of Staff Chairman Marti
英语新闻
Chicxulub is buried under two to three kilometers of limestone and mostly offshore, 奇克休留布大坑在两三公里的灰岩深处，而且大部分在近海。 which makes it difficult to study, Anderson went on, while Manson is really quite ac
万物简史
Did you ever dream of digging a hole so deep it came out the other side of the earth? Let's play that game again, using a little physics. First we have to imagine that our tunnel is lined with super-heat-resistant material so we can pass through laye
英语时差8，16