筛析是固体粉末的分离技术。是按颗粒大小用筛分级的方法,将已知重量的物料置于筛孔尺寸大小依次递减的一套筛子内,筛动一定时间后,物料按颗粒的大小分别留在各层筛子上,分为若干级。筛析结构用各级重量占总重量的百分数表示。
n. sieving
misc. screen analysis ; sieve analysis ; sieve classification
砾石通常是经过筛析和粒度分级的袋装砂子。
The gravel frequently is sieved and graded sand that is packed in bags.
摘要 : 筛析法是海滩沉积物粒度分析较经典和常用的方法。
Abstract : The sieving analysis is a classic and common method used to measure the particle sizes of beach sediments.
方法行之有效,对提高筛析泥沙颗粒级配的质量有着重要的意义。
This method is effective, and it has important significance on improving the quality of sieve analysis sand grains gradation.
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