misc. navigation lamp
因为北极星是一盏不动的导航灯，那个时代的航海家们主要依靠北极星来导航。
The reason for this was that he decided to orientate the map in the direction of the Pole Star since Polaris was the immovable guiding light in which the voyagers of that era placed their trust.
其原因是他决定以北极星的方向来确定地图的方向，因为北极星是固定不动的航灯，那时的航海者依赖它进行航行。
The reason for this was that he decided to orientate the map in the direction of the Vole Star since Polaris was the immovable guiding light in which the voyagers of that era placed their trust.
下列哪项出版物列出了所有对航海有影响的灯塔、灯船、灯浮标(高度超过8米)、雾号和雾灯。
D__ gives listings of all lighthouses, lightships, lit floating marks (over 8m in height), fog signals and lights of navigational significance.
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