通常，电信系统特别是无线通信系统有多种定义，最通用的是指一套设备，它允许两终端经过至少一个无绳或称空间接口的无线接口相连接。

The most general is a set of facilities which permits terminals to be interconnected via at least one cordless or radio interface, called the air interface.

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通常，电信系统特别是无线通信系统有多种定义，最通用的是指一套设备，它允许两终端经过至少一个无绳或称空间接口的无线接口相连接。

The most general is a set of facilities which permits terminals to be interconnected via at least one cordless or radio interface, called the air interface.

youdao