English translation for "大区电话业务"

wide area telephone service

Similar Words：

"大趋势" English translation, "大区" English translation, "大区长官，军政长官" English translation, "大区地形" English translation, "大区电话服务" English translation, "大区规划" English translation, "大区划" English translation, "大区交换中心" English translation, "大区快铁" English translation, "大区气象学" English translation