| 11. | There are optical problems with using cameras inside a watertight housing.
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| 12. | Modern dry suits have a watertight zipper for entry and exit.
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| 13. | The turret holds eight missiles ready for launch in watertight containers.
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| 14. | Its two engine rooms are separated by a watertight bulkhead division.
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| 15. | Personally, I don't think these compartments were watertight.
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| 16. | We do not require watertight WP : RS quality for them.
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| 17. | The only concessions to modernity are watertight bulkheads and heavier ballast.
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| 18. | The bedrock consists of manganese slate that is not particularly watertight.
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| 19. | Their hulls were subdivided into ten watertight compartments by transverse bulkheads.
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| 20. | Whilst heading west across the watertight compartments would keep it afloat.
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