在温度上升初期阶段，木质材料和非木质材料的环境湿度的变化趋势是截然相反的。
At the beginning of the rise of the ambient temperature, the different changing tendency of relative humidity was observed between wood based materials and synthetic of inorganic ones.
实验还发现，对霜层生长初期影响最大的两个因素是冷表面的温度和空气的相对湿度。
It is also found that the most important factors that influence the frost growth are the temperature of cold plate and relative humidity of air.
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