1、
A new process for producing roofing asphalt by steam cracking and condensation
建筑沥青生产新工艺&渣油过热水蒸汽裂解缩合
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2、
3、
The Fluid Catalytic Cracking ( FCC ) is the major gasoline-producing process in refinery.
FCC(流化催化裂化 ) 是炼厂生产汽油的主要方法之一.
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