connection establishment

• 连接建立

connection establishment的用法和样例：

例句

1. After the connection is established, the client sends commands to the server, which must return a responding message to each command it receives.
   连接建立以后，由客户端向服务器端发送命令，服务器端必须对接收到的每一条命令返回一条应答消息。