名词
中文翻译：电话交换机同义词
同义词：
['telephone exchange', 'switchboard']
例句：
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1. The telephone exchange is located in the city center.
电话交换台位于市中心。
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2. The switchboard operator was responsible for routing calls.
交换机操作员负责路由呼叫。
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3. The telephone exchange has been upgraded to support higher data rates.
电话交换台已升级以支持更高的数据传输速率。