Chinese translation for "步进制自动电话系统"

step-by-step automatic telephone system

Similar Words：

"步进制小交换机" Chinese translation, "步进制选择器" Chinese translation, "步进制终接器" Chinese translation, "步进制自动电话交换机" Chinese translation, "步进制自动电话局" Chinese translation, "步进重复倍增" Chinese translation, "步进重复对准" Chinese translation, "步进重复对准器" Chinese translation, "步进重复光刻" Chinese translation, "步进重复曝光" Chinese translation