短語(yǔ)詞組短語(yǔ)dense data set 稠密數(shù)據(jù)集dense open set [數(shù)]稠密開(kāi)集郃nowhere dense set [數(shù)]無(wú)処稠密集;無(wú)処稠密點(diǎn)集;[數(shù)]疏集dense in itself set 自密集;自轆集dense linearly ordered set 稠密線性序集non -dense set 非密集weakly dense set 弱稠集dense totally ordered set 稠密全序集relatively dense set 相對(duì)稠密集 返回 dense set