结果表明：白天晴空一般都是超绝热不稳定状态，并存在一种逆湿现象，造成向下输送的水气通量。
The results show in general the atmosphere is superadiabatic unstable state and there is a phenomenon of inverse humidity forming downward vapour transportation in cloudless daytime.
当日，山西省运城市雪过天晴，在运城平陆黄河湿地越冬的数千只白天鹅或结群嬉戏，或振翅飞翔，尽享阳光。
Thousands of swans which flied here to get through the winter enjoy sunshine after snowfall.
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