| 1. | Condensation can freeze and block the air tubes causing a variety of malfunctions.
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| 2. | The divers risked puncturing their pressure suits or air tubes if they ventured further.
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| 3. | One toy serves an extra function : the Beanie's weight holds the air tubes in place.
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| 4. | Late Tuesday night, doctors removed LaHue's air tube.
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| 5. | Later on, it acquires fine filamentous gills enclosing air tubes that join the longitudinal tracheal trunks.
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| 6. | They contract, closing up the air tubes.
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| 7. | Massive air tubes still snake into sides of the Hilton and the Hyatt, completing a drying-out process.
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| 8. | The cancer is called adenocarcinoma, named for the cells that line narrow air tubes deep in the lung.
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| 9. | The air tube in his trachea kept him from talking, but he was able to nod and shake his head.
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| 10. | As the babies grow and strengthen their underdeveloped chest muscles in the next few weeks, the air tubes will be removed.
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