单词:satellite library information network
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A: Good morning. Is this where I can get a library card issued to me? B: No problem, we have a short form right here; just hand it to me when you are done. A: I'm done. B: That looks great, but I will also need your driver's license or other form of
Most of them travel 40,000 miles to a satellite and then back to earth. Ten years ago, a satellite was capable of receiving and transmitting more than 33,000 telephone conversations simultaneously. No
LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog
[00:02.25]第八单元 课文A [00:04.49]Telecommunication via Satellite [00:06.71]卫星通信 [00:08.93]At the beginning of the twentieth century, [00:11.31]20世纪初 [00:13.69]there were four powerful means of transmitting and receiving information [00:17.37
68 科学家正在绘制洪水预报地形图 ENVIRONMENT REPORT September 14, 2001: Weather Maps For Floods (Start at 1'00
Researchers say that China's domestically-developed Beidou Navigation Satellite System brings the country closer to achieving its goal of building a satellite network with global coverage. The comments were made at the 9th China Satellite Navigation
[00:04.31]For Questions 6-10,you'll hear a lecture on Internet. [00:09.87]While you listen, [00:12.83]complete the sentences or answer the questions. [00:17.87]Use not more than 3 words for each answer. [00:22.52]You now have 25 seconds to read the s
[00:05.69]Before listening to each one,you will have time to read [00:10.14]the questions related to it. [00:13.90]While listening,answer each question by choosing A,B,C or D. [00:20.24]After listening, [00:23.41]you will have time to check your answ
EXPLORATIONS - October 23, 2002: Information Age, Part 2 By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program, EXPLORATIONS. Toda
EXPLORATIONS - Global Positioning System By Paul Thompson Broadcast: Wednesday, May 05, 2004 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Phoebe Zimmermann with the VOA Special Engli
HEALTH REPORT - National Library of Medicine By Jerilyn Watson Broadcast: Wednesday, March 24, 2004 This is the VOA Special English Health Report. Every year, people from all over the world get inform
Scientists Create New Maps of Ocean Floor 科学家绘制新的海底地图 Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientist
SatelliteTechnology Helps Human Rights Monitors AU.N. panel of experts is expected to release a report soon citing evidence of war crimes in the final months of Sri Lanka's civil war. Among the evidence the panel reviewed was satellite imagery from t
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
The first quantum communications satellite developed by China is expected to launch in July of this year. The BeijingShanghai quantum private communications line will also be opened in the second half of this year, according to Pan Jianwei, academic
By Mohamed Elshinnawi Washington 17 March 2008 The Library of Congress has been preparing for the digital age since the 1960's, when it used early technology to create and share its bibliographic information in electronic form. In the 1990's, the lib
MOSCOW, April 22 (Xinhua) -- The Russian Space Forces has re-established contact with a military satellite, Geo-IK-2, which went missing in February, local media reported Friday. According to a spokesman from the Defense Ministry(国防部) , Interfa
BEIJING, May 23 (Xinhua) -- The Ziyuan III satellite, launched on Jan. 9 to produce high-resolution imagery for civilian use, has sent back visual data covering 45.79 million square km of the globe as of May 18, according to an announcement on Wednes
TOKYO, Sept. 23 (Xinhua) -- Japan's H-2A rocket carrying a new information gathering satellite was launched at the Tanegashima Space Center in Kagoshima Prefecture on Friday, local media reported. Japan has already introduced three information-gather