Title: Hai di liang wan li
Description: Dang fa sheng xu duo chuan zhi zao bu ming wu ti gong ji de li qi shi jian hou, a nuo jiu bei zhao lai xie zhu diao cha. dan shi ta fa xian gong ji chuan zhi de bing bu shi ren he yi zhong hai zhong sheng wu, er shi yi sou you feng jian chang ni mo suo jia shi de shui di chuan. ...
Subjects: Underwater exploration, Submarines (Ships), Fiction