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path of agricultural technology progress
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path of agricultural technology progress
Encyclopedia
经济学
速水-拉坦诱导性创新理论
释
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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map scribing
map server
Maps in Illustration and Record of Changan City
Maps of and Notes about the Western Regions
map spatial scale
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map spot of vegetation map
Maps to Illustrate the Record of Grand Canal
Maps to the Stars
map subdivision design
Maps Unearthed form Fangmatan
Maps Unearthed from the Western Han Tomb in Mawangdui
map symbol
map symbol design
map symbolization
map symbols library
map thinking
map visualization
map winding number
MapWorld
Maqbool Fida Husain
Ma qi
Maqiangshi Dao
Ma Qianzhai
Ma Qichang
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