| 英文同义词: | Gases (petroleum), catalytic-cracked gas oil depropanizer bottoms, C4-rich acid-free;Gases (petroleum), catalytic-cracked gas oil depropanizer bottoms, C4-rich acid-free Petroleum gas [A complex combination of hydrocarbons obtained from fractionation of catalytic cracked gas oil hydrocarbon stream and treated to remove hydrogen sulfid;gases, petroleum, C4-rich, acid free |