求翻译：本文首先描述分析了课题的研究背景及意义，并且对TD网络进行了简单介绍，在此基础上，组建了适合于煤矿企业的专网，并对井下井上的组网方案进行了设计，所选的设备在实际中已有应用，切实可行。是什么意思？

This paper first describes and analyzes the research background and significance, and a brief introduction on the td network, on this basis, the formation of a private network suitable for a coal mining enterprise, and underground Inoue networking solutions for the design selected the device has bee

This article first describes the research analyzes the background and significance of TD Network, and gives a short introduction on this basis, and has set up for the coal companies, and the private network of wells on the pound of the group of Web design program, and the selected device has been in

This article first described has analyzed the topic research background and the significance, and has carried on the simple introduction to the TD network, in this foundation, set up has suited in the coal mine enterprise's special network, and went into a well on network plan to the well to carry o

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