液化氣芳構化生產三苯工藝,屬于石化領域輕烴芳構化技術.Product triphen in GLP is light hydrocarbon aromatization technique in A petrochemical field.利用等溫固定床反應器研究了直餾汽油芳構化改質催化劑的結焦失活規律.The coking and deactivation of virgin naphtha aromatization catalys...
He knew how the traffic congested at the junction of Seventh Avenue and Forty-second Street.他知道在第7街和第42街交叉處交通是多么擁擠。In the seventh paragraph, the author point out the deficiency and faultiness of this paper.第七章指出了本文工作的不足和...