By introducing the extension theory of hierarchy eigenvalue, the weight calculation will be solved by conversing it into the optimization problem; it is a new meaningful exploration.
引入可拓学等级特征值的概念，将权重计算问题转化为优化问题来解决是一个新的有意义的探索。
2
Based on the object oriented technology, the paper has founded a power system object model which accords with the characteristic and is also suitable for the calculation and extension.
本文基于面向对象技术，建立了一个既符合电力系统实际情况，又方便计算和扩展的电力系统对象模型。
3
Established the calculation model of waterproof layer tensile above bridge crack, compute a minimum extension and strength the waterproofing layer must have hi a certain width crack.