retrofitting

为(设备、结构等)配备以前没有或未安装的新部件或零件；进行现代化改造。

To supply (a device, structure, etc.) with new components or parts that were not previously available or installed; to modernize.

添加或替换原先未有的新部件。

To add or substitute (new components or parts) that were not previously available for or installed in a device, structure, etc.

同 backport:将修复或功能回溯到软件旧版本。

Synonym of backport (“to retroactively supply a fix or feature to a previous version of a software product at the same time or after supplying it to the current version.”).

为使适应新情况而赋予新特征或进行改造。

To give new characteristics or make alterations (to someone or something) to suit them to changed circumstances.

给设备等装配原先没有的新部件。

To supply a device, structure, etc., with new components or parts that were not previously available or installed.