wèi le / xiū fù / jiù / ruǎn jiàn / gōng chéng shī / tōng guò / nì xiàng gōng chéng / fēn xī / chéng xù / de / yùn xíng / luó jí为了修复旧软件,工程师通过逆向工程分析程序的运行逻辑。To repair old software, the engineers used reverse engineering to analyze the program's operating logic.