程控交换机
chéng​kòng​jiāo​huàn​jī

SPC exchange

  • created sense approved 程控交换机/程控交換機 · chéng​kòng​jiāo​huàn​jī · SPC exchange

    程控交换机 / 程控交換機

    chéng​kòng​jiāo​huàn​jī

    SPC exchange

    electronic switching system or stored program control exchange used in telecommunications

    随着技术的发展，程控交换机已经取代了旧式的机械交换机。

    created sense