How Do Submarines Dive and Surface?
0
0
3,822 المشاهدات·
10/22/23
في
Discovery
Modern submarines can dive up to 240 meters below the surface of the water. When the crew is ready to submerge, external ballast tanks that are normally filled with air, open to receive water....
أظهر المزيد
0 تعليقات
sort ترتيب حسب
