| 11. | Joint effort to equip the station with the $ 164 million American airlock
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| 12. | Smaller airlock that can accommodate NASA's space suits.
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| 13. | The injured would then be passed through an airlock into the hospital.
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| 14. | He improperly entered the airlock head-first and got stuck sideways.
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| 15. | Each individual shelter has a main corridor and two airlocks.
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| 16. | Primary objective was to install the final nitrogen tank outside the airlock.
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| 17. | There are two main designs for the fermentation lock, or airlock.
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| 18. | Ed opens the airlock, killing himself and the creature.
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| 19. | As a proposed airlock, it would not have kept out water.
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| 20. | Gemma shows them to the airlock but hides in the oxygen room.
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