单词：gas turbine-electric propulsion
单词：gas turbine-electric propulsion 相关文章
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Visionary Ideas Could Transform Future NASA Missions NASA, the U.S. space agency, has awarded $3 million in grants for 30 proposals which explore new ideas for Americas next generation space program. The proposals reflect wide-ranging visions of new
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Scientists Testing Space Propulsion by Light 科学家测试太阳能动力 Can the sun provide power for a spaceship to travel to the edge of our solar system? The answer may come from a small satellite. A Delta V rocket carried the satellite into s
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AUDIE CORNISH, HOST: Think about some of the things that spew nasty contaminants into the air - automobiles, power plants. How about leaf blowers? Those annoyingly loud, gas-powered, backpack-like machines are about to pass cars as the worst air poll
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SCOTT SIMON, HOST: The Democrats' proposed Green New Deal calls for America to eliminate greenhouse gas emissions from U.S. transportation, an ambitious goal that would require - among many other things - phasing out cars that run on gasoline. That m
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