A combination process of residual oil hydrodesulfurization and heavy oil catalytic cracking for processing imported sour crude oils was adopted in the Refinery of Maoming Petrochemical Company.是什么意思_A combination process of residual oil hydrodesulfurization and heavy oil catalytic cracking for processing imported sour crude oils was adopted in the Refinery of Maoming Petrochemical Company.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句