【Key words】 geometrical errors； minimum condition； nonlinear optimum searching method； linear programming method；
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The geometrical approximation theory of evaluating geometrical errors is put forward and modeled.
提出球度误差评定的几何逼近原理，并对算法进行了建模。
The unified mathematical model for evaluating geometrical errors is created with the theory of point set topology.
用点集拓扑学理论，建立了形位误差评定的统一数学模型。
This paper describes a method for the homogeneity measurement of optical material which is free from the system errors and the sample geometrical errors.
本文叙述了一种不受干涉仪系统误差及试样加工误差限制的测试光学材料均匀性的方法。
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