资料来源 : Free On-Line Dictionary of Computing

times-or-divided-by
     
        (By analogy with "plus-or-minus") A term occasionally used
        when describing the uncertainty associated with a scheduling
        estimate, for either humorous or brutally honest effect.  For
        a software project, the scheduling uncertainty factor is
        usually at least 2.
     
        [{Jargon File}]
     
        (1995-02-07)