Based on object oriented idea, ordered management of static product structure and dynamic design flow for series plastic box packing machine is achieved.
应用面向对象的技术思想，实现对系列化塑盒体包装机的静态产品结构与动态设计流程的有序管理。
3
Some bin packing problems are NP-complete but are amenable to dynamic programming solutions or to approximately optimal heuristic solutions.