【摘要】 本文按顺序推导出封闭法测量平面度误差的全部计算公式，并举实例说明它的应用。该项研究为平板检定提供了一种新方法，并为修订平面度国家标准和平板检定规程提供了理论依据。更多还原

【Abstract】 In this paper,all formulas for measuring plane dimension error in a close way are derivedin sequence.The application of these formulas is illustrated by giving examples. This studycontributes to a ne.w method for flat testing and offers a theoretical basis for revising statestandards on plane dimension and flat testing rules.更多还原