Wéixiū / rényuán / gēnghuàn / le / sǔnhuài / de / kěkòngguī, / jīqì / hěn / kuài / huīfù / le / zhèngcháng。维修人员更换了损坏的可控硅,机器很快恢复了正常。The technicians replaced the damaged thyristor, and the machine soon returned to normal.