underwater gun水下枪械
underwateradj.在水中生长的;水下的adv.在水下
underwater monitoring station水下监听站
underwater manned submersible水下载人潜水器
underwater target recognition水下目标识别
underwater acoustic waveguide水下声道
underwater-to-air missile水下对空导弹
underwater welding technology水下焊接技术
underwater concrete structure水下混凝土结构
underwater illuminative light水下照明灯