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Introduction With development of economics and furtheropening,competitions in market are intensive.The margin between the material cost and price ofproducts becomes small,which compels companiesto pursue higher rate of productivity and quality.The rate of productivity has been improvedthrough high pressing automation,but in order toget satisfactory quality of products under distur-bances,on- line measurement,identification,pre-diction and on- line control must be realized. Intel-ligentcont… 相似文献
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