retrofit

劍橋詞典

to provide a machine with a part , or a place with equipment , that it did not originally have when it was built
使（機(jī)器）改型翻新，升級(jí)改造
A state program to retrofit engines with pollution controls has succeeded in reducing pollution from trains . 州政府對(duì)引擎加裝污染控制系統(tǒng)的計(jì)劃成功地降低了火車的污染狀況。 返回 retrofit