| 41. | Cold pipes above condense the vapor, producing clean recycled water.
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| 42. | Berger also said it found no detectable levels of mercury vapor.
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| 43. | Humidity is the measure of water vapor present in the air.
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| 44. | In a nearly empty tank, this can create explosive vapors.
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| 45. | Some investigations support the theory that overheated vapors were to blame.
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| 46. | You can absorb it through the skin, or inhale vapor.
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| 47. | Other plans, Boyd said, " were all vapor.
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| 48. | The new model showed a different track for the vapor cloud.
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| 49. | Then we saw two white vapor trails on the left side.
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| 50. | Only water droplets and vapor come out of the exhaust pipe.
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