separation.分离separationn.分离；分居；缺口；分隔线；[化]离析；【航】间隔separation of copper and arsenic铜砷分离separation of personnel and files人档分离separation combined extruding die分流组合模separation of copper and aluminum铜铝分离separation of mediation and trial调审分离separation of subject from object主客相分separation of oxygen and nitrogen氧氮分离Separation of reading and writing读写分离separation by light refrigeration浅冷分离separation of incompatible duties不相容职务分离