20法则
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这就是有名的80/20法则。
That is what so called 80 / 20 Rule .
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幸福生活20法则
20 Keys to a Happy Life
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在业内流行着一条80/20法则即80%的安全威胁来自网络内部,因此重点要对内部网络的运行情况进行有效的控制。
A principle 80 / 20 is quite popular in the network vocation , that is 80 % network security threaten are from inner network . Therefore we must stress controlling the behaviors in inner network validly .