differentiatevt.区分；使差异；求导数vi.区别；产生差别；区别对待Differentiate directly直接分化differentiate intrusive分异侵入体differentiated staffing教师按才录用法, 分工任用教员法Differentiate operation差分运算differentiated servicse区分服务differentiated services区分服务differentiated equation微分方程differentiated teaching个别教授differentiated serotype分型differentiated products差异产品