等级

In accordance with legal compliance, electronic document lifecycle change over time, access to real-time rate of change in requirements, design construct that contains attribute class, time class, application-level rating system for triple the value.

按照法律遵从、电子文件生命周期随时间变化，访问率实时变化的要求，设计构建包含属性等级、时间等级、应用等级的三重价值级别体系。

Firstly, the target damage rank assessment was divided into the target vulnerability assessment and the target suffering attack degree assessment two processes. Then the correlated variables which influence target damage rank assessment were analyzed.

首先将目标毁伤等级评估分为目标易损性评估和目标遭受打击力度评估两个过程，接着分析了影响目标毁伤等级评估的相关变量，并在此基础上建立了目标毁伤等级评估的动态贝叶斯网络模型。

However, many schools decided to drop the E grade and go straight to F.

然而，许多学校决定取消E等级，D等级后面直接就是F等级。