名词
中文翻译：双重拨号
同义词：
['duplex', 'duplexing']
例句：
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1. The company has introduced a new duplex dialling system to improve customer service.
该公司推出了一种新的双音节拨号系统，以提高客户服务。
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2. The engineers are working on a duplex dialling project to enhance communication between different departments.
工程师们正在致力于一个双音节拨号项目，以增强不同部门之间的沟通。
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3. The duplex dialling feature allows users to connect two devices simultaneously, making it more convenient for sharing filesand resources.
双音节拨号功能允许用户同时连接两个设备，使共享文件和资源更加方便。