短语词组短语coke burning drum 烧焦罐coke drum test 焦炭转鼓试验coke drum frame 焦炭塔框架coke -burning drum 烧焦罐coke drum overhead gas line 焦炭塔顶挥发线drum of coke test 焦炭试验转鼓 返回 coke drum