短语词组短语Kellogg hydrocracking process 凯洛格加氢裂化法;翻译hydrofining -hydrocracking process 加氢精制;翻译mild hydrocracking process 缓和加氢裂化过程isomax boc hydrocracking process 埃索麦克斯BOC加氢裂化过程 返回 hydrocracking process