retrofit

retrofit
[ˈrɛtrəʊfɪt]
(retrofitted, retrofitting)
  1. [with obj.]add (a component or accessory) to something that did not have it when manufactured
    加装(部件,附件)
    motorists who retrofit catalysts to older cars.
    给老车加催化剂的车手。
    ■provide (something) with a component or accessory not fitted to it during manufacture
    对…进行改型
    buses have been retrofitted with easy-access features.
    公共汽车已经改装,添加了易于登车的设备。
noun
  1. an act of adding a component or accessory to something that did not have it when manufactured
    部件(或附件)的加装
    ■a component or accessory added to something after manufacture
    (制成后)再加装的部件 (附件)
语源
  1. 1950s: blend of retroactive and refit
英语宝典
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