gōng / chéng / shī / gēng / huàn / le / sǔn / huài / de / jīng / zhá / guǎn / shè / bèi / suí / hòu / huī / fù / zhèng / cháng

工程师更换了损坏的晶闸管，设备随后恢复正常。

The engineer replaced the damaged thyristor, and the equipment then returned to normal.