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物理学是以实验为基础的一门自然学科，一个物理规律的获得和验证往往离不开实验，而物理实验的结果不可能是绝对精确的总会产生与真实值间的差异，这便是误差。误差的分析和修正是一件比较麻烦的工作，中学生只需略知一些误差分析和修正的初步知识，不宜作深入的分析和计算、
Physics is a natural science based on experimentation. The acquisition and verification of a physical law is often inseparable from the experiment, and the result of the physical experiment cannot be absolutely accurate. The difference between the actual value and the actual value is error. Error analysis and correction is a relatively troublesome task. Middle school students only need to know some preliminary knowledge of error analysis and correction, and should not do in-depth analysis and calculations.