短語詞組短語hdsl network element management system hdsl 網(wǎng)管系統(tǒng)nems network element management system 網(wǎng)絡(luò)單元管理系統(tǒng)Network Provider -Element Management System 網(wǎng)絡(luò)側(cè)網(wǎng)元管理系統(tǒng) 返回 network element management system