observer
观察仪
observer【仪】
暂无补充释义。
相关词条
observer
observer
qualified aircraft observer【航】
participant observer
hidden observer
nonparticipant observer
observer-representative
observer【仪】
暂无补充释义。
observer
observer
observer
qualified aircraft observer【航】
participant observer
hidden observer
nonparticipant observer
observer-representative