一段磨矿分级  Primary grinding and classification

二段分级  two segment classification

二段分级时效  two step ageing

分馏分级分段  fractionation; fractionating

磨矿分级  grinding-classification; Grinding classification; Ore-milling classification; Grinding and classification; Classification; grinding grading; grind grading; ore grinding and classification

磨矿分级过程  grinding and classification process

磨矿分级控制系统  grinding-classification control system

磨矿分级流程  Ore Grinding and Classification Flow

磨矿分级系统  milling-classification operation system; grinding-classification system; grinding and classification system

磨矿分级自动控制系统  Automatic control system of grinding classification

选矿磨矿装置  ore mill for beneficiation

分级分选  classification and separation; classification separation

部分二分  partial dichotomy

单界二分选择问题  Single-bounded dichotomous choice

第二级选择机  second slector

第二级选组机  second group selector

多级二分类方法  hierarchical discrimination

二段分层化  sub-stratification

二段分解  2nd section decomposition

二段分解法  two section precipitation method