由终端操作员或计算机发送的字符或其它的短报文,用以指出已经收到前一报文。 By a terminal operator or computer; to send a character or other message to indicate that the previous message has been received.
控制台操作员以按下某个键或其它方式告诉操作系统已经收到某一报文。 By a console operator; to press a key or otherwise indicate to an operating system that a message has been received.
在数据通信过程中,被发送和接收的报文量。 In data communication, transmitted and received messages.
在通信技术中,报文进入系统的入口点。 In communications, a point of message entry into the system.