redundancy

redundancy
(pl. -ies)
  1. [mass noun]the state of being no longer needed or useful
    过剩,剩余
    the redundancy of 19th-century heavy plant machinery.
    19世纪重型成套机械的过剩。
    ■(chiefly Brit.)the state of being no longer in employment because there is no more work available
    (主英)(因劳动力过剩)解雇,失业
    the factory's workers face redundancy.
    工厂的工人们面临失业。
    [count noun]the car giant is expected to announce around 5,000 redundancies.
    汽车巨头将宣布裁员5,000人左右。
    ■(Engineering)the inclusion of extra components which are not strictly necessary to functioning, in case of failure in other components
    (工程)组件重复,组件重复设置
    a high degree of redundancy is built into the machinery installation.
    该机械装置有高度重复组件。
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