名词
中文翻译：数字调制解调器
同义词：
['digital subscriber line (DSL)', 'digital telecommunications equipment', 'digital transmission line']
例句：
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1. The digital modem is a device that converts analog signals into digital signals for transmission over the internet.
数字调制解调器是一种设备，它把模拟信号转换成数字信号，以便在互联网中传输。
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2. The digital modem is essential for connecting devices to the internet without using traditional telephone lines.
数字调制解调器对于连接设备到互联网而不使用传统电话线来说是必不可少的。
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3. The digital modem allows for faster and more reliable internet connections compared to older analog technology.
数字调制解调器与旧的模拟技术相比，提供了更快、更可靠的互联网连接。