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꽃 빗살
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IvrclvpdqRvbykS |
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| We'd like to invite you for an interview http://al4a.fun/ al4a “If the humidity is high (greater than that needed for ice condensation to occur), the contrail will be persistent. Newly formed ice particles will continue to grow in size by taking water from the surrounding atmosphere. The resulting line-shaped contrail extends for large distances behind an aircraft. Persistent contrails can last for hours while growing to several kilometers in width and 200 to 400 meters in height. Contrails spread because of air turbulence created by the passage of aircraft, differences in wind speed along the flight track, and possibly through effects of solar heating. |
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Kenny |
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2019-08-04 09:47:07 |
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