主要用于干燥，指示干燥程度或湿度，广泛用于精密 仪器、医药、石油化工、食品、服装、皮革、家电、航空、军工业、高层建筑、电力工业、及其它工业气体等。

Mainly used for drying and indicating drying degree or moisture for precise instrument, pharmacy, petrochemical, food, costume, leather, household apparatus, aviation, military industry, high building, power industry  and other industrial air, etc.