Development theory and technology of high pour point oil reservoir Efficient development theory and technology in ultra-low permeability reservoir Efficient development theory and technology in tight gas reservoir Development theory and technology of overseas carbonate oil and gas fields 并列题名:Efficient development theory and technology in ultra-low permeability reservoir System theory and technology of high speed generator 并列题名:Efficient development theory and technology in tight gas reservoir 并列题名:Development theory and technology of overseas carbonate oil and gas fields