The method USES chemical drying agent to dry raw material in cement production, the additive amount depends upon the water content in raw material to be dried.
一种适用于干法、半干法水泥生产的物料烘干方法，是利用化学干燥剂，根据物料水分控制添加量达到干燥物料水分的目的。
Air drying of raisins requires 3-4 weeks, According to region and season, the drying time is different, and chemical-accelerate-drying-agent could curtail drying time considerly.
葡萄自然干制需要大约三至四周的时间，不同地区不同季节干制时间的长短还有差别。
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