单位







查询維基詞典中的单位。

单位可以指：



  • 计量单位

  • 单位 (社会组织)


  • 公寓或住宅個位



数学中



  • 單位元


  • 单位數字，數字1。


  • 虚数单位，負1的平方根 (−1){displaystyle ({sqrt {-1}})}{displaystyle ({sqrt {-1}})}。


  • 单位 (环论)，环中可逆元的集合。



相關條目



  • 以「单位」開頭的條目

  • 以「單位」開頭的條目













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