短语词组短語Mild hydrocracking catalyst 溫和加氫裂化催化劑MHCU Mild Hydrocracking Unit 緩和加氫裂化MHC Mild hydrocracking 緩和加氫裂化mild hydrocracking process 緩和加氫裂化過程MHC Mild Hydrocracking Unit 溫和的加氫裂化裝置 返回 mild hydrocracking