Windows are used to control the amount of outstanding, unacknowledged data segments.

窗口用来控制未被确认的数据段的数量。

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This queue holds data that the application has sent but has not been acknowledged by the remote end (and may not have even been sent on the network depending on how many packets are unacknowledged).

这个队列保存应用程序已经发送，但是还没有得到远程端确认的数据(根据未确认数据包的数量，一些数据可能还未发送到网络)。

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