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1.
Comparative Study On Productivity Of Different Agricultural Management Entities In Guanzhong Area
2.
Empirical Study On Total Factor Productivity Of China's Marine Fisheries
3.
Study On The Temporal And Spatial Characteristics Of Ecological Efficiency Assessment Of Marine Fisheries In Coastal Areas Of China
4.
Research On The Relationship Between Cultivated Land Use Efficiency And Cultivated Land Ecological Security At County Scale In Hebei Province
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