A typical ca process involves three basic elements: the broadcast equipment, the set-top box, and the security module.
一个典型的CA过程包括三个基本要素：广播设备、机顶盒、安全模块。
A typical ca process involves three basic elements: the broadcast equipment, the set-top box, and the security module.
一个典型的CA过程包括三个基本要素：广播设备、机顶盒、安全模块。
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