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