名词
中文翻译：电话交换机台
同义词：
['telephone exchange', 'telephone switching board']
例句：
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1. The phone switchboard is the main control center for the entire network.
电话交换机台是整个网络的主要控制中心。
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2.The engineers were busy troubleshooting the faulty switchboard.
工程师们忙于修理故障的交换机台。
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3. The switchboard was designed to handle a large number of calls simultaneously.
交换机台设计用来同时处理大量的呼叫。