English translation for "直接交换系统"

direct switching system

Similar Words：

"直接交付法" English translation, "直接交换" English translation, "直接交换交换局" English translation, "直接交换扩散" English translation, "直接交换设备" English translation, "直接交换线路" English translation, "直接交换相互酌" English translation, "直接交换业务" English translation, "直接交货" English translation, "直接交接转租箱" English translation