H humidity-proof 防潮的
T&H temperature and humidity 温度和湿度
H humidity symbol 湿度符号
Used in ambient temperatures of 0 ~ 50, humidity less than 85%r. H.
适宜使用环境温度0度到50度，相对温度85%以下。
The lives of corrugated boxes is studied by the means of accelerated life test. The air relative humidity (H) and vertical load(G) are selected here to studied the lives of corrugated boxes.
选用空气相对湿度H和垂直载荷G为加速应力，用加速寿命试验法对瓦楞纸箱寿命进行研究。
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