This pattern is used to forbid cyclic dependencies between model elements (for example, there is no link from one object to itself).
该模式用于禁止模型元素之间的循环依赖（举例来说，不存在从对象到其本身的连接）。
The unsaturated link occurs in a cyclic system.
在环体系中存在不饱和键。
The structure of physical layer, link layer and application layer was applied in field-bus of network control, data was gained through cyclic query of principal and subordinate PC in link layer.
控制网络现场总线采用物理层、链路层和应用层结构。链路层以主从循环查询获取数据。
The structure of physical layer, link layer and application layer was applied in field-bus of network control, data was gained through cyclic query of principal and subordinate PC in link layer.
控制网络现场总线采用物理层、链路层和应用层结构。链路层以主从循环查询获取数据。
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