ballast water tank inside the submarine
Ballast Tank
压载水仓
压载舱
气镇罐
压载箱
压载罐
球轴承钢
矸层
压载水舱
频带
夹层
压舱柜
压载舱压载水舱
平衡用容器
压载双层底舱
ballast tank arrangement
ballast tank emergency flapper
clean ballast tank {= CBT}
dedicated clean ballast tank
dedicated clean ballast tank system
main ballast tank floood valve
Segregated ballast tank
segregated ballast tank {= SBT}
assembly inside the tunnel