| 英文名称: | | Gases, petroleum, catalytic-cracked gas oil depropanizer bottoms, C4-rich acid-free | | Catalytic cracking depropanizer bottoms butane, butylene olefin, hydrocarbon stream | | gases (petroleum), catalytic-cracked gas oil depropanizer bottoms, c4-rich acid | | -free | | gases (petroleum), catalytic-cracked gas oildepropanizer bottoms, c4-rich acid-free | | Gases,petroleum,catalytic-cracked gas oil depropanizer bottoms,C4-rich acid-free | | Catalytic cracking depropanizer bottoms butane,butylene olefin,hydrocarbon stream |
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