I introduce the C~2R model and BC~2 model of DEA method first in thispaper,and confirm the input indexes and output indexes of oppraising the agricultureeconomic Benefit.是什么意思_I introduce the C~2R model and BC~2 model of DEA method first in thispaper,and confirm the input indexes and output indexes of oppraising the agricultureeconomic Benefit.在线翻译_英语_读音_用法_例句