单词:flight test vehicle
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One of the most____ kinds of cars in the United States is not____ a car at all. It is a____ of a car and a___. It is called a sports utility____ or SUV. Some people____ these vehicles. They say SUV use too much___ and increase air____. They also say
EXPLORATIONS - Days of Apollo: Collecting Rocks, and Making History, on the MoonBy Marilyn Rice Christiano Broadcast: Wednesday, September 06, 2006 ANNOUNCER: EXPLORATIONS -- a program in Special Engl
NASA Astronauts Train for Commercial Space Flights 美国宇航局宇航员为商业太空飞行训练 The American space agency and private companies are developing vehicles to take humans into low Earth orbit and even farther into space. A space ve
65 航天飞机的飞行准备 DATE=7-4-01 TITLE=EXPLORATIONS #1959 - Preparing Shuttle for Space Flight BYLINE=Paul Thompson VOICE ONE: This is Shirley Griffith. VOICE TWO: And this is Steve Ember wi
33 阿波罗登月计划(三) DATE=4-25-01 TITLE=EXPLORATIONS #1949 - PROJECT APOLLO, PART 3 TYPE=SPECIAL ENGLISH FEATURE BYLINE=MARILYN RICE CHRISTIANO ANNCR: EXPLORATIONS -- A PROGRAM IN SPECIAL
On Wednesday, Google, Facebook, Yahoo! and other major Internet companies will participate in what is being called IPv6 or Internet Protocol Version 6 Test Day. The 24-hour trial run is being held to test a new communication system for the Internet,