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1·The rapid vertical and side-to-side motion created prevents apertures from blinding and offers accurate, repeatable results. An optional wet sieving attachment is available.

快速的垂直和边——边运动防止孔径堵塞，并使结果精确、可靠。

2·After proper pretreatment, fines of pulp can be prepared by the way of Bauer-McNett classifier method, DDJ sieving method and wet-sieving method.

纸浆细小纤维的制备可以先对纸浆适当预处理，然后采用筛分仪筛分法、DD J筛分法、湿筛分法等方法进行。

3·Wet-sieving method is a classical and still the most prevalent procedure for testing the water stability of soil aggregates.

湿筛法是测定土壤团聚体粒径分布和稳定性的经典方法。