单词	null-space
释义	null-space noun ˈnəl-ˌspās  : a subspace of a vector space consisting of vectors that under a given linear transformation are mapped onto zero Word History First Known Use 1884, in the meaning defined above
随便看	tortellini tortellinis torten tortes tortfeasors torticollis torticollises torticone tortie torties tortile tortilla tortilla chip tortillas tortillon tortillé tortional tortious tortious conveyance tortiously tortive tortle tortoise tortoise beetle tortoise plant

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