晒黑、多形性日光疹和光老化患病率随着执勤官兵高原入伍时间延长而增高，随着累积日照时数增多而增高；

With the time of being in the army and cumulative sun-exposure period, the prevalence of tanning, photoaging and polymorphous light eruption increased, while the prevalence of sunburn decreased.

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年累积日照时数为2903小时。

Cumulative sunshine hours for 2903 hours.

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在采访的当天，爱德华兹空军基地两架F - 22中的一架开始了F - 22的第89次飞行并将累积的飞行时数增加到了190个小时。

The day of the interview, one of the two F-22s at Edwards set off on the eighty-ninth F-22 flight and added to the 190 hours already accumulated.

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