ordinaln.序数词adj.序数的；依次的ordinal meaning顺序义ordinal measure序级测量ordinal feature序特征ordinal product序数积ordinal ranking顺序分级ordinal pattern序模式ordinal utility序数效用ordinal couplet有序对ordinal numeral(=ordinal number) n.；序数(如；first；third等)ordinal therapy序贯疗法