In silicate minerals and magnetites existed isomorph tin.
硅酸盐矿物和磁铁矿中都存在类质象态锡。
In silicate minerals and magnetites existed isomorph tin.
硅酸盐矿物和磁铁矿中都存在类质象态锡。
High and low, the bilateral symmetry, the isomorph, the homochromy, the homogeneity symmetry is called the absolute symmetry;
下、左右对称,形、色、质对称被称为绝对对称;
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,提出了有向装配关系图的概念,定义了有向装配关系图构,以有向装配关系图和零件通用属性来构库。
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