hydraulic classification meaning in Chinese

水力分级
水力分粒法
水力分选
水力离析
水力筛分

In this paper , the crystal structure of montmorillonite is introduced and the purification methods ( including gravity separation , hydraulic classification , flocculation , centrifugal separation and chemical purification ) , the purification principles and purification effectiveness of the methods were summarized
摘要总结了蒙脱石的各种提纯方法及其试验原理和提纯分离效果，主要涉及重力选矿、水力分析、絮凝法、离心分离和化学提纯。