短语词组短語Kellogg hydrocracking process 凱洛格加氫裂化法;繙譯hydrofining -hydrocracking process 加氫精制;繙譯mild hydrocracking process 緩和加氫裂化過程isomax boc hydrocracking process 埃索麥尅斯BOC加氫裂化過程 返回 hydrocracking process