Survey and analysis on economic benefit of sorgo to fuel ethanol production——With sorgo to fuel ethanol project in Huachuan county,Heilongjiang Province as example;

Development and economic benefit analysis on organic cotton/bamboo pulp fiber blended yarns;

Ways of increasing economic benefit of mine;

The measure for improving economic efficiency of rod pumping;

Analysis and comprehensive evaluation on transformer economic efficiency;

Prediction of Elastic Coefficient of Economic Efficiency of China s Information Resources Industry;