The phase characteristic of solvent deasphalting using Dagang residue light hydrocarbon of FCC as a stock, isobutane as a solvent was discussed.是什么意思_The phase characteristic of solvent deasphalting using Dagang residue light hydrocarbon of FCC as a stock, isobutane as a solvent was discussed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句