在数控机床中有两种基本控制系统，分别是点对点和线性。
There are two basic of control systems in numerical control: point-to-point and contouring.
设计了一种采用点对点数据通信方式的模拟控制系统用于演示教学。
One kind of simulating control system that adopts the point-to-point communication means being used to demonstrate the education was designed.
作为对传统的点对点通讯的代替，网络控制系统的公共总线网络结构提供了更有效的可重构性，更好的资源利用率，减少了安装和维护成本。
As an alternative to traditional point-to-point communication, NCS offers more efficient reconfigurability, better resource utilization, and also reduces installation and maintenance cost.
然而，从点对点到使用公用的通信总线，这种通信方式的改变在控制系统中引入了不同形式的时延。
However, the change of communication architecture from point-to-point to this common-bus approach introduces different forms of time-delay uncertainty in the closed-loop system dynamics.
然而，从点对点到使用公用的通信总线，这种通信方式的改变在控制系统中引入了不同形式的时延。
However, the change of communication architecture from point-to-point to this common-bus approach introduces different forms of time-delay uncertainty in the closed-loop system dynamics.
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