求翻译：20世纪80年代逐渐兴起的新经济增长理论正式将科学技术进步水平纳入发展经济学分析，强调研发创新是决定长期经济增长的关键因素。是什么意思？

80 years of the 20th century, the gradual rise of new economic growth theory formal level of scientific and technological advances into development economics analysis, emphasis on R & D and innovation are the key factors that determine the long-term economic growth.

The 1980s gradually on the rise of the new theory of economic growth will be formally incorporated into the development progress of science and technology level analyzes of the economics, emphasizing the development of innovative long-term economic growth is the key factor.

1980s emerge gradually the new economical growth theory integrates officially the science and technology progress level the development economic analysis, emphasized the research and development innovation is the key aspect which the decision long-term economy grows.

In the 1980 of the 20th century, emerging new economic growth theory of formal economic analysis of the level of scientific and technological progress in development, stressed that research and innovation are key factors in determining long-term economic growth.

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