Because the hot and humid climate in the South China is more common, it is necessary to make a further discussion and research on the fatigue properties of asphalt pavemen in the condition of the hot and humid climate.

The depravation of cooling and dehumidification of constant temperature and humidity air-condition because of frosting of evaporator and the fluctuation of temperature and humidity when the evaporation defrosts are key problems as the wide use of low temperature air-condition and low temperature and humidity constant system.

The experiments carried out were aiming to keep fishery products alive in the spraying and non-water environments, with low temperature and high relative humidity.