Refined oil yield of the first vacuum side stream has reached 99.3% and yield of petroleum acids reached 0.62%. Acid number is 157mg KOH/g. Complex solvent can be recovered for reuse and the recovery rate is 98.9%.是什么意思_Refined oil yield of the first vacuum side stream has reached 99.3% and yield of petroleum acids reached 0.62%. Acid number is 157mg KOH/g. Complex solvent can be recovered for reuse and the recovery rate is 98.9%.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句