Distinguished Service Medaln.（名词）abbr. DSM, D.S.M.【缩写】
A U.S. military decoration awarded for distinguished performance in a duty of great responsibility.（美国的）战时优异服务勋章：美国军队荣誉奖，授予在有巨大责任的任务中的表现突出者
A British military decoration awarded to noncommissioned officers and men in the Royal Navy and Royal Marines for distinguished conduct in war.（英国的）战时优异战功勋章：英国军队的勋章，授予在战争中表现突出但未受任命的英国皇家海军及皇家海军陆战队的军官和战士