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