Summarize the characteristics of roller-gear-cam and structure in ATC. Introduce the tool change process of automatic tool change, draw the motion circle graph.
总结了滚子齿形凸轮的特点及其在自动换刀单元（ ATC）中滚子齿形凸轮的结构形式。
This is a perfect way for one to manage the friend circle and get rid of some of the noise in your social graph.
这是一个管理朋友圈并且剔除你社交图谱里一些“噪音”的好方法。
Circle matrix is the algebraic description of all the resource circles in a directed graph, and equivalence reciprocally to that one of complementary set and T-characteristic vector.
回路矩阵是一个资源有向图全部资源回路的代数描述，并且它与补集及t -特征向量矩阵相互等价。
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