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Close the device file.

关闭设备文件。

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You can use this same approach to create encrypted file systems with the loop device on a file.

可以按照相同的方法在文件上用循环设备创建加密的文件系统。

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What if you want to save a music file on your device?

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When you are downloading a large file to your Android device, QCOM is there too.

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GuardianEdge products offer a breadth of encryption, port, device and file type control technologies while establishing a market-leading position in solving the operational issues of deployment, management, scalability, reporting, auditing and user productivity at the lowest possible total cost.

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