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path of agricultural technology progress
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path of agricultural technology progress
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经济学
速水-拉坦诱导性创新理论
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path of agricultural technology progress
农业技术进步道路
农业生产中先进技术对落后技术的替代方式。表现为用同样多的农业资源可以生产出更多的农产品,或者生产同样多的农产品只需要投入比以前更少的农业资源。
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National Research Institute of Science and Technology for Environment and Agriculture
National Research University-Higher School of Economics
National Resistance Movement
National Revolutionary Army
National Revolutionary Movement
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National Revolution of Puerto Rico in 1950
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National Rural Well-off Environmental Protection Action Plan
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National Satellite Positioning System Engineering Research Center
national scholarship
National School of Administration in France
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National Science and Technology Academic Works Publishing Fund
National Science and Technology Awards
national science and technology basic condition platform
National Science and Technology Innovation Plan for the 13th Five-Year Plan
National Science and Technology Library
National Science Congress
National Science Digital Library of American
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