控制系统处理编码于CD中的子码部分。
The control system processes the subcode that is encoded on the CD.
管理码（母码）可以删除或者增加用户码（子码）；
Master password can be used to add or delete any sub password.
还可以通过下列带有短线和子码名称的ISO语言代码，来指定为这个标准中的方言。
You may also indicate a dialect by following the ISO language code with a dash and a subcode name.
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