type 639 research ship

IMAGES

1. Type 639 Dongyuan 02 underwater sound measurement ship

   

2. Type 639 Dongyuan 02 underwater sound measurement ship

   

3. Type 639 Dongyuan 02 underwater sound measurement ship

   

4. Type 639 Dongyuan 02 underwater sound measurement ship

   

5. Type 639 Dongyuan 02 underwater sound measurement ship

   

6. No.639 Stockholm launched in 1940