Reaffirming America's role as the global engine of scientific discovery and technological innovation has never been more critical.

重申美国作为科学发现和技术创新的全球引擎这一角色的作用从未像现在这样重要。

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Innovation in aviation has centered on the development of the jet engine for civil use, first in a turbo propeller form and later as a pure jet.

航空业的革新集中于民用航空喷气式发动机的研发，首先是涡轮螺旋桨发动机，后来是纯粹的喷气机。

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The technological innovation is an engine of economic growth.

技术创新是经济增长的引擎。

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In short, the Internet has become the key innovation engine of the 21st century economy.

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The innovation engine and superior market understanding are the only core competences a scalpel company will need to own.

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The Accenture innovation engine risks a continuation of product innovation and the trench warfare that has characterized the food industry.

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