短語(yǔ)詞組短語(yǔ)Telecommunications systems and management 電訊系統(tǒng)管理telecommunications service management systems 電信業(yè)務(wù)管理系統(tǒng)telecommunications business integrated management systems 電信業(yè)務(wù)綜合管理系統(tǒng) 返回 telecommunications systems management