semi-automatic private branch exchange
半自动专用小交换机
private branch exchange access line
专用小交换机联接通道
Each telephone served by a private branch exchange.
由专用小交换机提供服务的电话分机。
Yet industry observers caution that PBXs are prone to year 2000 complications.
工业界的观察家也提醒人们专用小交换机易受2000年复杂性伤害。
The buzz on the street is that PBX systems and related voice gear may be the hardest by the year 2000 bug.
现在的热门话题是专用小交换机或有关的语音设备受2000年错误的危害最大。
private automatic telephone exchange
专用自动电话交换机
railway telephone exchange
铁路专用电话交换机
Such a switch replaces dedicated circuit-switching hardware with IP switching technology
这样的交换机是利用IP交换技术代替专用的电路交换硬件。
A Contrastive Analysis of Central Exchange and Private Branch Exchange;
虚拟交换机与传统用户小交换机之对比分析
digital electronic private automatic branch exchange
数字专用式电子自动交换分机
But it has existed in the proprietary realms of PBXes and heavy metal (mainframes or minisystems).
但它只是存在于用户电话交换机和笨重的铁家伙（大型机或小型机）的专有王国中。
Automated Data Interchange Systems Panel
自动数据交换系统专家小组（数据交换系统小组）
Like a desktop switch, the workgroup switch can support private Ethernet connections to a single user.
工作组交换机也像台式交换机那样，能支持接到单一用户的专用以太网连接。
PABX [Private Automatic Branch Exchange]
私用自动分机交换机
Design of the Small Digital Program Controlled Exchange Used in Electric Power Communication;
电力通信用小型数字程控交换机的设计
Adds a public or private automatic branch exchange, either digital or analog, to your network diagram.
在网络中添加数字（或模拟）的公用（或专用）自动交换分机。
A private telephone exchange that automatically connects internal "branch" lines to the external circuits of a telephone system.
一种自动地将内部用户线连接到电话系统外线的专用电话交换机。
solutions, such as switches, that replace PBXes;
替代用户交换机的解决方案，如交换器；