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advanced space technologies
The National Aeronautics and Space Administration (NASA) and other organizations are pursuing ideas that are not merely refinements of existing technology, but possible breakthroughs that will result in more efficient rockets, unlimited power production, and greatly reduced cost. Other ideas, like inventions of the past, such as the transistor, may lead to unexpected results.
- 词性: noun
- 行业/领域: 科学
- 类别 普通科学
- Company: McGraw-Hill
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- Francisb
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