In normal operation, the remote client responds with an ack packet that moves the half-open connection to fully open.
在正常操作中，远程客户机用一个ACK数据包进行响应，这会使半开的连接转换为全开的。
A connection of this type is called a half-open connection.
这种类型的连接称为半开连接。
A connection of this type is called a half-open connection.
这种类型的连接称为半开连接。
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