基本解释n.专用小交换机同根派生 PBX相关词英汉例句用作名词 (n.)This facility is important in some PBX systems which use nonstandard lines that certain modems will interpret as a dead line.这种设备在某些专用小交换机系统中非常重要,这些系统用的是非标准线路,某些调制解调器会把它们当作死线路。PBX更多例句