来自MSN4 天
Russian Navy's 48000 Ton Submarine - Engineering Marvel!
The Russian Typhoon-class SSBN (Project 941 "Akula") is the largest nuclear-powered ballistic missile submarine ever built.
来自MSN6 天
China's secret submarine: A stealth leap in naval technology
An open-source intelligence analyst, MT Anderson observed a new, previously unknown submarine at the Guangzhou Shipyard in ...