Contrasting the serrated stress-time curves with the position-time plots, the relationship between the macroscopic spatiotemporal behaviors is compared for the PLC effect.

同时，还将时域上的“锯齿形”应力一时间曲线与空域上的带的传播位置-时间曲线相对应，得到了PLC效应发生时宏观上时域和空域之间的关系。

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Directly from the PLC PID operation to the temperature controller, DT3, as the temperature control core, reduce the PLC computation and improve the control effect of heating key process.

从PLC直接作PID运算提升到温度专用控制器，DT3为温度控制核心，减轻PLC计算量，提高了加热关键工序的控制效果。

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Compare with the traditional control with the relay, the PLC control lowers the practice cost, enhances the teaching effect, and increases the study efficiency.

与传统的继电器控制比较，PLC控制降低了实习成本，增强了教学效果，提高了学习效率。

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