A hierarchy conceptual model of the armor protection of engineer equipment was constructed and the method of analyzing and calculating its cost and effectiveness was proposed.
构建了工程装备战场防护的层次概念模型，提出了一种装备战场防护费用和防护效果的分析计算方法。
2
A simple model for the hierarchy of marketing places and the cost of processing information and final consumption price is established.
建立了关于分销渠道的层级、信息处理成本以及最终消费价格关系的简单模型。
3
The hierarchy of an aerial attack target menace evaluation model in air defense system is established using the hierachy analysis method, and the cost weighting coefficient is obtained.