ADVANCED SUBMARINES 1 / 2: Deep-Submergence Vehicles (720p) 21.242 بازدید منتشر شده در تاریخ 1396/07/27 This educational video shows an experiment deep submarine design used by the U.S. Navy in the 1960s. ... This educational video shows an experiment deep submarine design used by the U.S. Navy in the 1960s. همه توضیحات ... #متفرقه #youtube #documentary #submarine
