optimized design scheme 优化设计方案

optimized material transportation scheme 最优物资输送

optimized scheme 方案优选

an optimized scheme 优选方案

optimized flow scheme 优化流程

optimized caving scheme 崩矿方案优化

proposed an optimized scheme 提出优化方案

optimized allocation scheme 优化分配方案

optimized construction scheme 优化建设方案