isomorph

In silicate minerals and magnetites existed isomorph tin.

硅酸盐矿物和磁铁矿中都存在类质同象态锡。

High and low, the bilateral symmetry, the isomorph, the homochromy, the homogeneity symmetry is called the absolute symmetry;

下、称，同形、同色、同质称被称为绝称；

According to the concept of context process problem space,. the concept of Directed Assembly Relationship Graph(DARG) was put forward. The isomorph of DARG was defined.

根据下文工艺问题空间的概念,提出了有向装配的概念,定义了有向装配同构,以有向装配和零件通用属性来构建实例库。