The article brings forward file level flow control mechanism, this mechanism use stream information layers to choose strip files with less data rate to send when networks is congested.

这种机制利用分片产生的流描述信息得到文件的流发送速率等级，在网络拥塞时选择发送较小编码速率的文件数据，从而达到了服务器端控制发送速率的目的。

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Fast-forward to today. We now have the fourth extended file system (ext4).

今天，我们已经拥有第4个扩展文件系统(ext4)。

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The operation of reading from a file is very straight forward, we open a file stream, create an array to hold the data, and finally read all the data into the array.

从文件中读取内容的操作是非常直截了当的：我们打开一个文件流对象，创建一个数组来放置数据，最后把所有数据都读到这个数组中。

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The DOT told airlines in February they needed to file properly going forward.

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Playing back the files is a bit cumbersome however as the unit has to query up the whole file in order to fast forward or rewind which takes up to a minute sometimes.

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