In a DVR product needs to involve to several big technical modules: the embedded operating system, arranges the decoding, the hard disk management, the net biography.
一个DVR产品中需要涉及到几大技术模块：嵌入式操作系统、编解码、硬盘管理、网传。
In a DVR product needs to involve to several big technical modules: the embedded operating system, arranges the decoding, the hard disk management, the net biography.
一个DVR产品中需要涉及到几大技术模块：嵌入式操作系统、编解码、硬盘管理、网传。
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