名词
中文翻译：分机交换机
同义词：
['branch office', 'branch office switchboard例句：1. The branch switchboard is located in the back of the building.（分机交换机位于大楼的后部。）']
例句：
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1. The branch switchboard is located in the back of the building.
分机交换机位于大楼的后部。
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2. The branch switchboard was used to connect different parts of the network.
分机交换机用于连接网络的不同部分。
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3. The branch switchboard was replaced with a new model after several years of use.
经过几年的使用，分机交换机被一款新型号所取代。