водонепроникна перебірка
watertight cell
watertight door
watertight seal
watertight line
watertight
watertight integrity
watertight container
holding bulkhead
bulkhead air grille
bulkhead cover
bulkhead sliding
control rod bulkhead fitting
aft pressure bulkhead
engine bulkhead
fireproof bulkhead
forward pressure bulkhead
partial bulkhead
spinner bulkhead
bulkhead