Riffle division method: a riffle is a kind of non-mechanical sample divider, which is usually fed manually.The sample is divided into 2 equal parts by riffle, with one retained and one rejected.

 
  • 二分器缩分法:二分器系非机械式样品缩分器,通常用手工给料,样品通过二分器被分成二等份,一份保留,另一份弃去。
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