短語詞組短語high pressure hydrocracking unit 高壓加氫裂化MHCU Mild Hydrocracking Unit 緩和加氫裂化hydrocracking unit revamping 加氫裂化裝置改造MHC Mild Hydrocracking Unit 溫和的加氫裂化裝置medium pressure hydrocracking unit 中壓加氫裂化裝置heavy oil hydrocracking unit 重油加氫裝置naphtha hydrocracking unit 石腦油加氫裝置 返回 hydrocracking unit