基本解釋[數(shù)學(xué)]無(wú)窮開(kāi)區(qū)間無(wú)限開(kāi)區(qū)間詞組短語(yǔ)短語(yǔ)infinite branch open interval 無(wú)窮開(kāi)區(qū)間infinite open interval更多詞組專(zhuān)業(yè)釋義數(shù)學(xué)無(wú)窮開(kāi)區(qū)間無(wú)限開(kāi)區(qū)間