The asymmetrical skeg is an energy-saving unit which is fixed on the sternpost forward of the propeller on a single screw ship.
不对称尾鳍是安装在单桨船螺旋桨前方艉柱上的一种节能装置。
Known as the "Archimedes screw give water," the machine is pumping water from the cabin of the ship from the invention.
被称作“阿基米德举水螺旋”的扬水机是为了将水从大船的船舱中排出而发明的。
This ship is oil tanker owning single screw.
本船是单螺旋桨成品油轮。
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