Dead Reckoning" is one of the foundamental parts of nautics.
“迹推算”学的基本内容之一。
Dead Reckoning" is one of the foundamental parts of nautics.
“迹推算”学的基本内容之一。
Floating equipmet Buoys and lamps for nautics Luminous buoys Mooring buoy - Non-polluting floating...
分标题:船舶—器材和置|标、浮筒和灯塔...
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