classificationtoryadj.分类上的；类别的classificationn.分类；类别classification and naming分类命名classification algorithms分类算法classification efficiency分级效率classification management分类经营classification production分等成果classification error cost误分类代价classification unit units定级单元单位化classification filtration分阶段筛选Classification extraction分级提取classification of defects缺陷的分类