medical unit clean water tank water drainage
after peak bulkhead
艉尖舱舱壁
尾尖舱舱壁
尾尖舱壁
尾尖舱舱壁尾尖舱壁
艉舱壁
after water impoundment
after water interception for 34 years
heat resistance after water absorption
seepage after peak stage
softening after peak values
duration of using water peak