Due to the fact that butadiene contained in alkylation feedstocks from catalytic cracking unit can convert into heavy oil during alkylation reaction, resulting in the dry point of product and the acid consumption going up and the octane number down.是什么意思_Due to the fact that butadiene contained in alkylation feedstocks from catalytic cracking unit can convert into heavy oil during alkylation reaction, resulting in the dry point of product and the acid consumption going up and the octane number down.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句