Separation Zone or Line分隔带或分隔线
forbidden zone boundary line禁区界限;[测] [海洋] 禁区界线
tropical zone load line mark热带载重线
winter zone load line mark冬季载重线标志
minimum zone line最小区域线
city zone transmission-line城区送电线路
zone line face-off spot蓝线争球点;篮线争球点
line zone线围
firn line zone永久积雪区