Green coffee . size analysis . manual sieving 生咖啡.粒度分析.手工筛分
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Methods of test for coffee and coffee products - green coffee : size analysis by manual sieving 咖啡与咖啡制品试验方法.第5部分:生咖啡手工筛分粒度分析
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Methods of test for spices and condiments - determination of degree of fineness of grinding - hand sieving method reference method 香料和调味品试验方法.第8部分:研磨细度等级测定手工筛分法