对于涉及这种材料的问题，如果延用经典弹性理论的解答，有可能产生较大的误差。
The errors may be not allowable if theory of elasticity is employed in the problems concerning these materials.
在经典控制理论和现代控制理论中，反馈被用来产生作为控制器输入的误差。
In classical control theory and modern control theory, feedback is used to produce errors which is the input of a controller.
随着经典误差理论向现代误差理论变迁，人们逐渐接受采用测量不确定度来表示测量结果的可靠性程度。
So with the transition from classical error theory to modern error theory, people gradually accept that the reliability standard of the result of measurement is expressed by measurement uncertainty.
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