submarine sonar的相關(guān)資料：
臨近單詞
submarinemine
submarine
submarine communication support system
Submarine can submerge very quickly.
Submarine's Inertial Navigation System
submarine optical communication cables
submarine-launched ballistic missile
Submarine Sail Portable Command Center
Submarine Tender Availability Document
Submarine Radio Communication Exercise
submarine photoelectric tracing device
Submarine Antenna Engineering Division
