We use network coding, i. e. , allowing intermediate nodes to code, the problem can be formulated as a linear program problem and has a polynomial-time solution.
利用网络编码，允许中间节点进行信息编码，最小能量广播问题可以转化为一个线性规划问题，并且具有一个多项式时间解。
In the fourth chapter, we use network DEA to evaluate efficiency of energy and environmental governance system comprehensively, also we give an example to illustrate the our research.
第四章利用网络DEA对能源与环境治理系统进行综合评价，并进行了实证研究；
If it has its own IP address, we can use the access point itself over the network; this is less secure, but more fun to use for a demo.
如果它有自己的 IP 地址，那么我们就可以在网络上使用接入点本身了；这样做的安全性要差一些，但在用于演示方面会更有趣。
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