The download speed was measured at 50 mbps.

下载速度被测量为50兆比特每秒。

The download speed improved after the file was buffered.

文件被缓冲的后，下载速度提高了。

How can I improve my download speed?

如何提高下载速度?

A special type of DSL line where the upload speed is different from the download speed.

上传速率和下载速率不同的一种DSL线路类型.

Now you can try to test the download speed. After reboot your system.

重新开机后试试上网测试下载速率吧.