本文改进了单源箱模式。
并以系统的工具箱模式构建了理想化的个性化信息服务系统的结构图。
It builds the ideal constructive graph of personalized information service system through the toolbox model of system.
根据复杂山区地形的特点，以箱模式为基础，引入地形修正系数，建立梯形模型。
Echelon model was built based on the box model and imported modified terrain coefficient, according to the characteristic of mountainous area.
应用推荐