When material quality and operating condition of manufactured object change or fluctuate, process parameters can't be automatically regulated.

当被加工对象的材质及工况条件有变化或波动时，不能对工艺参数自动地进行相应的调整。

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The key change was the addition of copper strips to the metamaterial that shields an object from incoming light to create a better material, couple with a slight change in its orientation to solve a problem caused by dividing the metamaterial of the cloaking device into quadrants.

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