submarine, 潛艇

The Los Angeles-class attack submarine USS Hampton (SSN 767) surfaces at Ice Camp Nautilus, located on a sheet of ice adrift on the Arctic Ocean, during Ice Exercise (ICEX) 2014.
WPVets.org | Your Navy TODAY – Red Sea, Arabian Sea, Arctic Ocean
http://wpvets.org/4416/your-navy-today-red-sea-arabian-sea-arctic-ocean
Ice Exercise 2014 Demobilizes Ice Camp Nautilus and Shifts to Next Phase
http://navylive.dodlive.mil/2014/03/31/ice-exercise-2014-demobilizes-ice-camp-nautilus-and-shifts-to-next-phase/
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