Tank fitted on the structure has the tap with the ascending operating bar from the outside flywheel , so that {HEAD ~ the structure} can be submerged in {TAIL ~ the sea} with the tanks and and the suction pump  
submerged in
Tank fitted on the structure has the tap with the ascending operating bar from the outside flywheel , so that { HEAD ~ the structure } can be submerged in { TAIL ~ the sea } with the tanks and and the suction pump
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH