“null set”的概念、定义、翻译、参考文献-科学参考

单词	null set
释义	null set [`nǝl `set] ^MATHEMATICS The empty set; the set which contains no elements.
随便看	heterodesmic heterodimer heterodont Heterodonta Heterodontoidea heteroduplex heterodyne heterodyne analyzer heterodyne conversion transducer heterodyne detector heterodyne frequency heterodyne frequency meter heterodyne interference heterodyne measurement heterodyne modulator heterodyne oscillator heterodyne reception heterodyne repeater heterodyne wavemeter heterodyne whistle heteroecious heteroerotism heterogamete heterogametic sex heterogamety

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