基本解釋[數(shù)學(xué)]可數(shù)序列可數(shù)數(shù)列詞組短語短語denumerable infinite sequence 可數(shù)無限序列denumerable sequence更多詞組專業(yè)釋義數(shù)學(xué)可數(shù)序列可數(shù)數(shù)列