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	unruinable unruined unrulable unruled unrulier unruliest unruliness unrulinesses unruly unrumpled unrung unrushed unrusted unruth UNRWA uns unsabbatical unsack unsacred unsadden unsaddle unsaddled unsaddles unsaddling unsafe

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