详细解释:【计】 链路协议
例句：
A transmission control character used to indicate that one or more of the following bit patterns have no correct interpretations as characters in the code or link protocol of the system.一种传送控制字符，用于指明一个或多个后继的位模式不能正确地解释为系统编码或系统链路协议中的字符。