调制解调器是实现模拟信号和数字信号互相转变的设备，通过它用户的电脑才可连接因特网。
Modem enables the mutual conversion of analog signals and digital signals. Dial up connection is impossible without medom.
调制解调器是实现模拟信号和数字信号互相转变的设备，通过它用户的电脑才可连接因特网。
Modem enables the mutual conversion of analog signals and digital signals. Dial up connection is impossible without medom.
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