tiáo / jié / piān / zhì / diàn / liú / kě / yǐ / gǎi / shàn / jīng / tǐ / guǎn / de / gōng / zuò / zhuàng / tài调节偏置电流可以改善晶体管的工作状态。Adjusting the bias current can improve the operating state of the transistor.