free semigroup
英
美
网络 自由半群
双语例句
- Free Semigroup and Structure Design of Packaging Tianjin Institute of Light Industry
自由半群与包装结构设计 - A free semigroup model of structure design of packaging and its methods applied to CAD for packaging were offered in this paper.
提出了包装结构设计的自由半群模型，并且给出了该模型在包装CAD结构设计中应用时的实现方法。