名词
中文翻译：Unknown
同义词：
['telecommunications circuit', 'telephone line', 'telecommunications line']
例句：
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1. Thetelephone exchange circuit was designed to improve communication between different locations.
电话交换电路的设计目的是为了改善不同地点之间的通信。
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2. The technicians were busy troubleshooting the telephone exchange circuit.
技术人员忙于修理电话交换电路。
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3.The new telephone exchange circuit will allow for faster and more reliable communication.
新的电话交换电路将使通信更快、更可靠。